diff --git a/.github/actions/cache-query-compilation/action.yml b/.github/actions/cache-query-compilation/action.yml
index 0ad0b7da9822..0b28fb6c198a 100644
--- a/.github/actions/cache-query-compilation/action.yml
+++ b/.github/actions/cache-query-compilation/action.yml
@@ -25,7 +25,7 @@ runs:
         echo "merge_base=$MERGE_BASE" >> $GITHUB_ENV
     - name: Restore cache (PR)
       if: ${{ github.event_name == 'pull_request' }}
-      uses: actions/cache/restore@v3
+      uses: actions/cache/restore@6f8efc29b200d32929f49075959781ed54ec270c # v3.5.0
       with:
         path: |
           **/.cache
@@ -37,7 +37,7 @@ runs:
           codeql-compile-${{ inputs.key }}-main-
     - name: Fill cache (only branch push)
       if: ${{ github.event_name != 'pull_request' }}
-      uses: actions/cache@v3
+      uses: actions/cache@6f8efc29b200d32929f49075959781ed54ec270c # v3.5.0
       with:
         path: |
           **/.cache
@@ -55,7 +55,7 @@ runs:
         COMBINED_CACHE_DIR: ${{ runner.temp }}/compilation-dir
     - name: Fill compilation cache directory
       id: fill-compilation-dir
-      uses: actions/github-script@v6
+      uses: actions/github-script@d7906e4ad0b1822421a7e6a35d5ca353c962f410 # v6.4.1
       env: 
         COMBINED_CACHE_DIR: ${{ runner.temp }}/compilation-dir
       with:
diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 30cb9833a6a4..d797f06182a2 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -17,6 +17,8 @@ updates:
     ignore:
       - dependency-name: '*'
         update-types: ['version-update:semver-patch', 'version-update:semver-minor']
+    cooldown:
+      default-days: 7
 
   - package-ecosystem: "gomod"
     directory: "go/extractor"
@@ -46,4 +48,4 @@ updates:
     schedule:
       interval: weekly
     exclude-paths:
-      - "misc/bazel/registry/**"
+      - "misc/bazel/registry/**"
\ No newline at end of file
diff --git a/.github/workflows/buildifier.yml b/.github/workflows/buildifier.yml
index ac344df588ed..c43ecdadc724 100644
--- a/.github/workflows/buildifier.yml
+++ b/.github/workflows/buildifier.yml
@@ -17,9 +17,9 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Check bazel formatting
-        uses: pre-commit/action@646c83fcd040023954eafda54b4db0192ce70507
+        uses: pre-commit/action@646c83fcd040023954eafda54b4db0192ce70507 # v3.0.0
         with:
           extra_args: >
             buildifier --all-files 2>&1 ||
diff --git a/.github/workflows/check-implicit-this.yml b/.github/workflows/check-implicit-this.yml
index a109f4bfe55c..83963b78b513 100644
--- a/.github/workflows/check-implicit-this.yml
+++ b/.github/workflows/check-implicit-this.yml
@@ -16,7 +16,7 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Check that implicit this warnings is enabled for all packs
         shell: bash
         run: |
diff --git a/.github/workflows/check-overlay-annotations.yml b/.github/workflows/check-overlay-annotations.yml
index 849cad113c40..e8b1c3f5a4e0 100644
--- a/.github/workflows/check-overlay-annotations.yml
+++ b/.github/workflows/check-overlay-annotations.yml
@@ -17,7 +17,7 @@ jobs:
   sync:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Check overlay annotations
         run: python config/add-overlay-annotations.py --check java
 
diff --git a/.github/workflows/check-qldoc.yml b/.github/workflows/check-qldoc.yml
index 8fe47bf50f76..efc54a597617 100644
--- a/.github/workflows/check-qldoc.yml
+++ b/.github/workflows/check-qldoc.yml
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
         with:
           fetch-depth: 2
 
diff --git a/.github/workflows/check-query-ids.yml b/.github/workflows/check-query-ids.yml
index 14d597d44cbd..aad1a8bb2823 100644
--- a/.github/workflows/check-query-ids.yml
+++ b/.github/workflows/check-query-ids.yml
@@ -19,6 +19,6 @@ jobs:
     name: Check query IDs
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Check for duplicate query IDs
         run: python3 misc/scripts/check-query-ids.py
diff --git a/.github/workflows/close-stale.yml b/.github/workflows/close-stale.yml
index 1c74ede8bf6f..c9f666bda2cd 100644
--- a/.github/workflows/close-stale.yml
+++ b/.github/workflows/close-stale.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/stale@v9
+    - uses: actions/stale@5bef64f19d7facfb25b37b414482c7164d639639 # v9.1.0
       with:
         repo-token: ${{ secrets.GITHUB_TOKEN }}
         stale-issue-message: 'This issue is stale because it has been open 14 days with no activity. Comment or remove the `Stale` label in order to avoid having this issue closed in 7 days.'
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index 64b46b00a228..21677943d6f0 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -32,12 +32,12 @@ jobs:
 
     steps:
     - name: Setup dotnet
-      uses: actions/setup-dotnet@v4
+      uses: actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9 # v4.3.1
       with:
         dotnet-version: 10.0.100
 
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/cpp-swift-analysis.yml b/.github/workflows/cpp-swift-analysis.yml
index f72c13cdd708..948f639f088b 100644
--- a/.github/workflows/cpp-swift-analysis.yml
+++ b/.github/workflows/cpp-swift-analysis.yml
@@ -28,7 +28,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
diff --git a/.github/workflows/csharp-qltest.yml b/.github/workflows/csharp-qltest.yml
index fc8bc218fe76..b96022979b9d 100644
--- a/.github/workflows/csharp-qltest.yml
+++ b/.github/workflows/csharp-qltest.yml
@@ -39,9 +39,9 @@ jobs:
         os: [ubuntu-latest, windows-latest]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Setup dotnet
-        uses: actions/setup-dotnet@v4
+        uses: actions/setup-dotnet@67a3573c9a986a3f9c594539f4ab511d57bb3ce9 # v4.3.1
         with:
           dotnet-version: 10.0.100
       - name: Extractor unit tests
@@ -55,7 +55,7 @@ jobs:
   stubgentest:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - uses: ./csharp/actions/create-extractor-pack
       - name: Run stub generator tests
         run: |
diff --git a/.github/workflows/csv-coverage-metrics.yml b/.github/workflows/csv-coverage-metrics.yml
index c9ec9e602d2b..d64921786572 100644
--- a/.github/workflows/csv-coverage-metrics.yml
+++ b/.github/workflows/csv-coverage-metrics.yml
@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Setup CodeQL
         uses: ./.github/actions/fetch-codeql
       - name: Create empty database
@@ -37,7 +37,7 @@ jobs:
         run: |
           DATABASE="${{ runner.temp }}/java-database"
           codeql database analyze --format=sarif-latest --output=metrics-java.sarif -- "$DATABASE" ./java/ql/src/Metrics/Summaries/FrameworkCoverage.ql
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: metrics-java.sarif
           path: metrics-java.sarif
@@ -51,7 +51,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Setup CodeQL
         uses: ./.github/actions/fetch-codeql
       - name: Create empty database
@@ -64,7 +64,7 @@ jobs:
         run: |
           DATABASE="${{ runner.temp }}/csharp-database"
           codeql database analyze --format=sarif-latest --output=metrics-csharp.sarif -- "$DATABASE" ./csharp/ql/src/Metrics/Summaries/FrameworkCoverage.ql
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: metrics-csharp.sarif
           path: metrics-csharp.sarif
diff --git a/.github/workflows/csv-coverage-pr-artifacts.yml b/.github/workflows/csv-coverage-pr-artifacts.yml
index c62de00535e2..89d3bc69635d 100644
--- a/.github/workflows/csv-coverage-pr-artifacts.yml
+++ b/.github/workflows/csv-coverage-pr-artifacts.yml
@@ -35,11 +35,11 @@ jobs:
           GITHUB_CONTEXT: ${{ toJSON(github.event) }}
         run: echo "$GITHUB_CONTEXT"
       - name: Clone self (github/codeql) - MERGE
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
         with:
           path: merge
       - name: Clone self (github/codeql) - BASE
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
         with:
           fetch-depth: 2
           path: base
@@ -48,7 +48,7 @@ jobs:
           git log -1 --format='%H'
         working-directory: base
       - name: Set up Python 3.8
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@7f4fc3e22c37d6ff65e88745f38bd3157c663f7c # v4.9.1
         with:
           python-version: 3.8
       - name: Download CodeQL CLI
@@ -71,21 +71,21 @@ jobs:
         run: |
           python base/misc/scripts/library-coverage/compare-folders.py out_base out_merge comparison.md
       - name: Upload CSV package list
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: csv-framework-coverage-merge
           path: |
             out_merge/framework-coverage-*.csv
             out_merge/framework-coverage-*.rst
       - name: Upload CSV package list
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: csv-framework-coverage-base
           path: |
             out_base/framework-coverage-*.csv
             out_base/framework-coverage-*.rst
       - name: Upload comparison results
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: comparison
           path: |
@@ -97,7 +97,7 @@ jobs:
         env:
           PR_NUMBER: ${{ github.event.pull_request.number }}
       - name: Upload PR number
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: pr
           path: pr/
@@ -117,7 +117,7 @@ jobs:
           GITHUB_TOKEN: ${{ github.token }}
           PR_NUMBER: ${{ github.event.pull_request.number }}
       - name: Upload comment ID (if it exists)
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: comment
           path: comment/
diff --git a/.github/workflows/csv-coverage-pr-comment.yml b/.github/workflows/csv-coverage-pr-comment.yml
index 534725815b4b..a9190554e405 100644
--- a/.github/workflows/csv-coverage-pr-comment.yml
+++ b/.github/workflows/csv-coverage-pr-comment.yml
@@ -24,9 +24,9 @@ jobs:
         GITHUB_CONTEXT: ${{ toJSON(github.event) }}
       run: echo "$GITHUB_CONTEXT"
     - name: Clone self (github/codeql)
-      uses: actions/checkout@v5
+      uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
     - name: Set up Python 3.8
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@7f4fc3e22c37d6ff65e88745f38bd3157c663f7c # v4.9.1
       with:
         python-version: 3.8
 
diff --git a/.github/workflows/csv-coverage-timeseries.yml b/.github/workflows/csv-coverage-timeseries.yml
index 11bc06bee602..816b26d5bf27 100644
--- a/.github/workflows/csv-coverage-timeseries.yml
+++ b/.github/workflows/csv-coverage-timeseries.yml
@@ -12,16 +12,16 @@ jobs:
 
     steps:
       - name: Clone self (github/codeql)
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
         with:
           path: script
       - name: Clone self (github/codeql) for analysis
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
         with:
           path: codeqlModels
           fetch-depth: 0
       - name: Set up Python 3.8
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@7f4fc3e22c37d6ff65e88745f38bd3157c663f7c # v4.9.1
         with:
           python-version: 3.8
       - name: Download CodeQL CLI
@@ -30,7 +30,7 @@ jobs:
         run: |
           python script/misc/scripts/library-coverage/generate-timeseries.py codeqlModels
       - name: Upload timeseries CSV
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: framework-coverage-timeseries
           path: framework-coverage-timeseries-*.csv
diff --git a/.github/workflows/csv-coverage-update.yml b/.github/workflows/csv-coverage-update.yml
index 9f7a0b778dab..06e1bf734181 100644
--- a/.github/workflows/csv-coverage-update.yml
+++ b/.github/workflows/csv-coverage-update.yml
@@ -21,12 +21,12 @@ jobs:
           GITHUB_CONTEXT: ${{ toJSON(github.event) }}
         run: echo "$GITHUB_CONTEXT"
       - name: Clone self (github/codeql)
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
         with:
           path: ql
           fetch-depth: 0
       - name: Set up Python 3.8
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@7f4fc3e22c37d6ff65e88745f38bd3157c663f7c # v4.9.1
         with:
           python-version: 3.8
       - name: Download CodeQL CLI
diff --git a/.github/workflows/csv-coverage.yml b/.github/workflows/csv-coverage.yml
index a1224456410a..41775e932841 100644
--- a/.github/workflows/csv-coverage.yml
+++ b/.github/workflows/csv-coverage.yml
@@ -16,16 +16,16 @@ jobs:
 
     steps:
       - name: Clone self (github/codeql)
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
         with:
           path: script
       - name: Clone self (github/codeql) for analysis
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
         with:
           path: codeqlModels
           ref: ${{ github.event.inputs.qlModelShaOverride || github.ref }}
       - name: Set up Python 3.8
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@7f4fc3e22c37d6ff65e88745f38bd3157c663f7c # v4.9.1
         with:
           python-version: 3.8
       - name: Download CodeQL CLI
@@ -34,12 +34,12 @@ jobs:
         run: |
           python script/misc/scripts/library-coverage/generate-report.py ci codeqlModels script
       - name: Upload CSV package list
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: framework-coverage-csv
           path: framework-coverage-*.csv
       - name: Upload RST package list
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: framework-coverage-rst
           path: framework-coverage-*.rst
diff --git a/.github/workflows/fast-forward.yml b/.github/workflows/fast-forward.yml
index d71f8be20f99..471e02363e38 100644
--- a/.github/workflows/fast-forward.yml
+++ b/.github/workflows/fast-forward.yml
@@ -26,7 +26,7 @@ jobs:
           exit 1
 
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
 
       - name: Git config
         shell: bash
diff --git a/.github/workflows/go-tests.yml b/.github/workflows/go-tests.yml
index 6578f09b8dfc..b4d3bf983dfd 100644
--- a/.github/workflows/go-tests.yml
+++ b/.github/workflows/go-tests.yml
@@ -22,7 +22,7 @@ jobs:
     runs-on: ubuntu-latest-xl
     steps:
       - name: Check out code
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Run tests
         uses: ./go/actions/test
         with:
diff --git a/.github/workflows/go-version-update.yml b/.github/workflows/go-version-update.yml
index 6c22f3445100..09607bb50c0d 100644
--- a/.github/workflows/go-version-update.yml
+++ b/.github/workflows/go-version-update.yml
@@ -17,7 +17,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/kotlin-build.yml b/.github/workflows/kotlin-build.yml
index 71a9f8b525ce..7214a7f73a7b 100644
--- a/.github/workflows/kotlin-build.yml
+++ b/.github/workflows/kotlin-build.yml
@@ -20,7 +20,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - run: |
           bazel query //java/kotlin-extractor/...
           # only build the default version as a quick check that we can build from `codeql`
diff --git a/.github/workflows/labeler.yml b/.github/workflows/labeler.yml
index 512fa40d2e3a..2030ec8982a7 100644
--- a/.github/workflows/labeler.yml
+++ b/.github/workflows/labeler.yml
@@ -10,6 +10,6 @@ jobs:
   triage:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/labeler@v4
+    - uses: actions/labeler@ac9175f8a1f3625fd0d4fb234536d26811351594 # v4.3.0
       with:
         repo-token: "${{ secrets.GITHUB_TOKEN }}"
diff --git a/.github/workflows/mad_modelDiff.yml b/.github/workflows/mad_modelDiff.yml
index 45a31f406664..0aadbf23f417 100644
--- a/.github/workflows/mad_modelDiff.yml
+++ b/.github/workflows/mad_modelDiff.yml
@@ -28,12 +28,12 @@ jobs:
         slug: ${{fromJson(github.event.inputs.projects || '["apache/commons-codec", "apache/commons-io", "apache/commons-beanutils", "apache/commons-logging", "apache/commons-fileupload", "apache/commons-lang", "apache/commons-validator", "apache/commons-csv", "apache/dubbo"]' )}}
     steps:
       - name: Clone github/codeql from PR
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
         if: github.event.pull_request
         with:
           path: codeql-pr
       - name: Clone github/codeql from main
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
         with:
           path: codeql-main
           ref: main
@@ -99,12 +99,12 @@ jobs:
             name="diff_${basename/.model.yml/""}"
             (diff -w -u $m $t | diff2html -i stdin -F $MODELS/$name.html) || true
           done
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: models-${{ steps.shortname.outputs.SHORTNAME }}
           path: tmp-models/**/**/*.model.yml
           retention-days: 20
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: diffs-${{ steps.shortname.outputs.SHORTNAME }}
           path: tmp-models/*.html
diff --git a/.github/workflows/mad_regenerate-models.yml b/.github/workflows/mad_regenerate-models.yml
index 402dd9573318..e80f5dc98709 100644
--- a/.github/workflows/mad_regenerate-models.yml
+++ b/.github/workflows/mad_regenerate-models.yml
@@ -30,11 +30,11 @@ jobs:
             ref: "placeholder"
     steps:
       - name: Clone self (github/codeql)
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Setup CodeQL binaries
         uses: ./.github/actions/fetch-codeql
       - name: Clone repositories
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
         with:
           path: repos/${{ matrix.ref }}
           ref: ${{ matrix.ref }}
@@ -59,7 +59,7 @@ jobs:
           find java -name "*.model.yml" -print0 | xargs -0 git add
           git status
           git diff --cached > models.patch
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: patch
           path: models.patch
diff --git a/.github/workflows/microsoft-codeql-pack-publish.yml b/.github/workflows/microsoft-codeql-pack-publish.yml
index 0b2ff3c84e7d..bbde72964b67 100644
--- a/.github/workflows/microsoft-codeql-pack-publish.yml
+++ b/.github/workflows/microsoft-codeql-pack-publish.yml
@@ -26,7 +26,7 @@ jobs:
       codeql_version: ${{ steps.set_codeql_version.outputs.codeql_version }}
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
         with:
           fetch-depth: 0 
       - name: Set CodeQL Version
@@ -47,7 +47,7 @@ jobs:
         language: ['powershell']
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
     - name: Install CodeQL
       shell: bash
       run: |
@@ -113,7 +113,7 @@ jobs:
         language: ['csharp', 'cpp', 'java', 'javascript', 'python', 'ruby', 'go', 'rust', 'swift', 'powershell']
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@11d5960a326750d5838078e36cf38b85af677262 # v4.4.0
     - name: Install CodeQL
       shell: bash
       run: |
diff --git a/.github/workflows/powershell-pr-check.yml b/.github/workflows/powershell-pr-check.yml
index d6ab90989808..5a6f9154a210 100644
--- a/.github/workflows/powershell-pr-check.yml
+++ b/.github/workflows/powershell-pr-check.yml
@@ -15,7 +15,7 @@ jobs:
       contents: read
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@a37ce9120846195fa4ece8f58b268e6043cb2f26 # v3.7.0
         with:
           fetch-depth: 0
           token: ${{ github.token }}
diff --git a/.github/workflows/python-tooling.yml b/.github/workflows/python-tooling.yml
index a3ad9900ea47..95663909fd3a 100644
--- a/.github/workflows/python-tooling.yml
+++ b/.github/workflows/python-tooling.yml
@@ -21,11 +21,11 @@ jobs:
   check-python-tooling:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
+      - uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
         with:
           python-version: '3.12'
-      - uses: pre-commit/action@646c83fcd040023954eafda54b4db0192ce70507
+      - uses: pre-commit/action@646c83fcd040023954eafda54b4db0192ce70507 # v3.0.0
         name: Check that python code is properly formatted
         with:
           extra_args: black --all-files
diff --git a/.github/workflows/qhelp-pr-preview.yml b/.github/workflows/qhelp-pr-preview.yml
index a152eb7cc097..68e68ab89a84 100644
--- a/.github/workflows/qhelp-pr-preview.yml
+++ b/.github/workflows/qhelp-pr-preview.yml
@@ -36,14 +36,14 @@ jobs:
       - run: echo "${PR_NUMBER}" > pr_number.txt
         env:
           PR_NUMBER: ${{ github.event.number }}
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: comment-pr-number
           path: pr_number.txt
           if-no-files-found: error
           retention-days: 1
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
         with:
           fetch-depth: 2
           persist-credentials: false
@@ -78,7 +78,7 @@ jobs:
           exit "${EXIT_CODE}"
 
       - if: ${{ !cancelled() }}
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: comment-body
           path: comment_body.txt
@@ -94,7 +94,7 @@ jobs:
           GITHUB_TOKEN: ${{ github.token }}
           PR_NUMBER: ${{ github.event.number }}
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: comment-id
           path: comment_id.txt
diff --git a/.github/workflows/ql-for-ql-build.yml b/.github/workflows/ql-for-ql-build.yml
index e05a7c39c4b8..14caa29ba67c 100644
--- a/.github/workflows/ql-for-ql-build.yml
+++ b/.github/workflows/ql-for-ql-build.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest-xl
     steps:
       ### Build the queries ###
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
         with:
           fetch-depth: 0
       - name: Find codeql
@@ -33,7 +33,7 @@ jobs:
       ### Build the extractor ###
       - name: Cache entire extractor
         id: cache-extractor
-        uses: actions/cache@v3
+        uses: actions/cache@6f8efc29b200d32929f49075959781ed54ec270c # v3.5.0
         with:
           path: |
             ql/extractor-pack/
@@ -41,7 +41,7 @@ jobs:
           key: ${{ runner.os }}-${{ steps.os_version.outputs.version }}-extractor-${{ hashFiles('ql/**/Cargo.lock') }}-${{ hashFiles('shared/tree-sitter-extractor') }}-${{ hashFiles('ql/**/*.rs') }}
       - name: Cache cargo
         if: steps.cache-extractor.outputs.cache-hit != 'true'
-        uses: actions/cache@v3
+        uses: actions/cache@6f8efc29b200d32929f49075959781ed54ec270c # v3.5.0
         with:
           path: |
             ~/.cargo/registry
@@ -76,7 +76,7 @@ jobs:
           sarif_file: ql-for-ql.sarif
           category: ql-for-ql
       - name: Sarif as artifact
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: ql-for-ql.sarif
           path: ql-for-ql.sarif
@@ -85,7 +85,7 @@ jobs:
           mkdir split-sarif
           node ./ql/scripts/split-sarif.js ql-for-ql.sarif split-sarif
       - name: Upload langs as artifacts
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: ql-for-ql-langs
           path: split-sarif
diff --git a/.github/workflows/ql-for-ql-dataset_measure.yml b/.github/workflows/ql-for-ql-dataset_measure.yml
index b4561c04a965..c34b9d6ef6cc 100644
--- a/.github/workflows/ql-for-ql-dataset_measure.yml
+++ b/.github/workflows/ql-for-ql-dataset_measure.yml
@@ -25,7 +25,7 @@ jobs:
           - github/codeql
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
 
       - name: Find codeql
         id: find-codeql
@@ -34,7 +34,7 @@ jobs:
           languages: javascript # does not matter
       - uses: ./.github/actions/os-version
         id: os_version
-      - uses: actions/cache@v3
+      - uses: actions/cache@6f8efc29b200d32929f49075959781ed54ec270c # v3.5.0
         with:
           path: |
             ~/.cargo/registry
@@ -46,7 +46,7 @@ jobs:
         env:
           CODEQL: ${{ steps.find-codeql.outputs.codeql-path }}
       - name: Checkout ${{ matrix.repo }}
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
         with:
           repository: ${{ matrix.repo }}
           path: ${{ github.workspace }}/repo
@@ -65,7 +65,7 @@ jobs:
           "${CODEQL}" dataset measure --threads 4 --output "stats/${{ matrix.repo }}/stats.xml" "${{ runner.temp }}/database/db-ql"
         env:
           CODEQL: ${{ steps.find-codeql.outputs.codeql-path }}
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: measurements
           path: stats
@@ -75,15 +75,15 @@ jobs:
     runs-on: ubuntu-latest
     needs: measure
     steps:
-      - uses: actions/checkout@v5
-      - uses: actions/download-artifact@v4
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
+      - uses: actions/download-artifact@d3f86a106a0bac45b974a628896c90dbdf5c8093 # v4.3.0
         with:
           name: measurements
           path: stats
       - run: |
           python -m pip install --user lxml
           find stats -name 'stats.xml' -print0 | sort -z | xargs -0 python ruby/scripts/merge_stats.py --output ql/ql/src/ql.dbscheme.stats --normalise ql_tokeninfo
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: ql.dbscheme.stats
           path: ql/ql/src/ql.dbscheme.stats
diff --git a/.github/workflows/ql-for-ql-tests.yml b/.github/workflows/ql-for-ql-tests.yml
index e21860519041..f8e97ff86468 100644
--- a/.github/workflows/ql-for-ql-tests.yml
+++ b/.github/workflows/ql-for-ql-tests.yml
@@ -24,7 +24,7 @@ jobs:
   qltest:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Find codeql
         id: find-codeql
         uses: github/codeql-action/init@main
@@ -33,7 +33,7 @@ jobs:
           tools: nightly
       - uses: ./.github/actions/os-version
         id: os_version
-      - uses: actions/cache@v3
+      - uses: actions/cache@6f8efc29b200d32929f49075959781ed54ec270c # v3.5.0
         with:
           path: |
             ~/.cargo/registry
@@ -65,7 +65,7 @@ jobs:
     needs: [qltest]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Install GNU tar
         if: runner.os == 'macOS'
         run: |
@@ -79,7 +79,7 @@ jobs:
           tools: nightly
       - uses: ./.github/actions/os-version
         id: os_version
-      - uses: actions/cache@v3
+      - uses: actions/cache@6f8efc29b200d32929f49075959781ed54ec270c # v3.5.0
         with:
           path: |
             ~/.cargo/registry
diff --git a/.github/workflows/query-list.yml b/.github/workflows/query-list.yml
index 8c736379f8a6..c8d7066b21c6 100644
--- a/.github/workflows/query-list.yml
+++ b/.github/workflows/query-list.yml
@@ -23,11 +23,11 @@ jobs:
 
     steps:
     - name: Clone self (github/codeql)
-      uses: actions/checkout@v5
+      uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       with:
         path: codeql 
     - name: Set up Python 3.8
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@7f4fc3e22c37d6ff65e88745f38bd3157c663f7c # v4.9.1
       with:
         python-version: 3.8
     - name: Download CodeQL CLI
@@ -37,7 +37,7 @@ jobs:
       run: |
         python codeql/misc/scripts/generate-code-scanning-query-list.py > code-scanning-query-list.csv
     - name: Upload code scanning query list
-      uses: actions/upload-artifact@v4
+      uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
       with:
         name: code-scanning-query-list
         path: code-scanning-query-list.csv
diff --git a/.github/workflows/rust-analysis.yml b/.github/workflows/rust-analysis.yml
index 397aa2fba512..938afaa1deea 100644
--- a/.github/workflows/rust-analysis.yml
+++ b/.github/workflows/rust-analysis.yml
@@ -35,7 +35,7 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v5
+      uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
 
     - name: Query latest nightly CodeQL bundle
       shell: bash
diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index 34f5efb74ba6..406ef6e1df2c 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -30,7 +30,7 @@ jobs:
         working-directory: rust/ast-generator
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Inject sources
         shell: bash
         run: |
@@ -53,7 +53,7 @@ jobs:
         working-directory: rust/extractor
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Format
         shell: bash
         run: |
@@ -69,7 +69,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Install CodeQL
         uses: ./.github/actions/fetch-codeql
       - name: Code generation
diff --git a/.github/workflows/swift.yml b/.github/workflows/swift.yml
index 4a5613f988e5..4d5383cc665e 100644
--- a/.github/workflows/swift.yml
+++ b/.github/workflows/swift.yml
@@ -36,7 +36,7 @@ jobs:
       fail-fast: false
     runs-on: ${{ matrix.runner }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Setup (Linux)
         if: runner.os == 'Linux'
         run: |
@@ -53,30 +53,30 @@ jobs:
   clang-format:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
-      - uses: pre-commit/action@646c83fcd040023954eafda54b4db0192ce70507
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
+      - uses: pre-commit/action@646c83fcd040023954eafda54b4db0192ce70507 # v3.0.0
         name: Check that python code is properly formatted
         with:
           extra_args: clang-format --all-files
   codegen:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - uses: ./.github/actions/fetch-codeql
-      - uses: pre-commit/action@646c83fcd040023954eafda54b4db0192ce70507
+      - uses: pre-commit/action@646c83fcd040023954eafda54b4db0192ce70507 # v3.0.0
         name: Check that QL generated code was checked in
         with:
           extra_args: swift-codegen --all-files
       - name: Generate C++ files
         run: |
           bazel run codegen -- --generate=trap,cpp --cpp-output=$PWD/generated-cpp-files
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
         with:
           name: swift-generated-cpp-files
           path: generated-cpp-files/**
   check-no-override:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Check that no override is present in load.bzl
         run: bazel test ... --test_tag_filters=override --test_output=errors
diff --git a/.github/workflows/sync-files.yml b/.github/workflows/sync-files.yml
index f7f42f2e5aff..b79e8eebe163 100644
--- a/.github/workflows/sync-files.yml
+++ b/.github/workflows/sync-files.yml
@@ -17,7 +17,7 @@ jobs:
   sync:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Check synchronized files
         run: python config/sync-files.py
       - name: Check dbscheme fragments
diff --git a/.github/workflows/sync-main-tags.yml b/.github/workflows/sync-main-tags.yml
index a22cf8ceba9b..b19ac75c9f73 100644
--- a/.github/workflows/sync-main-tags.yml
+++ b/.github/workflows/sync-main-tags.yml
@@ -16,7 +16,7 @@ jobs:
       contents: write
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@a37ce9120846195fa4ece8f58b268e6043cb2f26 # v3.7.0
         with:
           fetch-depth: 0
       - name: Push Tags
diff --git a/.github/workflows/sync-main.yml b/.github/workflows/sync-main.yml
index cdc3e27f0e89..522817bd8bd4 100644
--- a/.github/workflows/sync-main.yml
+++ b/.github/workflows/sync-main.yml
@@ -20,7 +20,7 @@ jobs:
       
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@a37ce9120846195fa4ece8f58b268e6043cb2f26 # v3.7.0
         with:
           fetch-depth: 0
           token: ${{ secrets.WORKFLOW_TOKEN }}
diff --git a/.github/workflows/tree-sitter-extractor-test.yml b/.github/workflows/tree-sitter-extractor-test.yml
index da5834a7f9f3..8633a33e185f 100644
--- a/.github/workflows/tree-sitter-extractor-test.yml
+++ b/.github/workflows/tree-sitter-extractor-test.yml
@@ -30,7 +30,7 @@ jobs:
   test:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Check formatting
         run: cargo fmt -- --check
       - name: Run tests
@@ -38,12 +38,12 @@ jobs:
   fmt:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Check formatting
         run: cargo fmt --check
   clippy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - name: Run clippy
         run: cargo clippy -- --no-deps -D warnings -A clippy::new_without_default -A clippy::too_many_arguments
diff --git a/.github/workflows/validate-change-notes.yml b/.github/workflows/validate-change-notes.yml
index 6812d8ff0f6d..7f5e16f41805 100644
--- a/.github/workflows/validate-change-notes.yml
+++ b/.github/workflows/validate-change-notes.yml
@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
 
       - name: Setup CodeQL
         uses: ./.github/actions/fetch-codeql
diff --git a/.github/workflows/zipmerge-test.yml b/.github/workflows/zipmerge-test.yml
index 1e7ac195b5a7..5f3dce0acc85 100644
--- a/.github/workflows/zipmerge-test.yml
+++ b/.github/workflows/zipmerge-test.yml
@@ -18,6 +18,6 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@fbc6f3992d24b796d5a048ff273f7fcc4a7b6c09 # v5.1.0
       - run: |
           bazel test //misc/bazel/internal/zipmerge:test --test_output=all