diff --git a/requirements_cove.txt b/requirements_cove.txt
index 597bb2e..f3712cf 100644
--- a/requirements_cove.txt
+++ b/requirements_cove.txt
@@ -79,7 +79,7 @@ libcove==0.31.0
     #   libcoveweb
 libcoveweb==0.31.2
     # via -r requirements_cove.in
-lxml==5.3.1
+lxml==6.1.0
     # via flattentool
 markupsafe==3.0.2
     # via werkzeug
diff --git a/requirements_cove_dev.txt b/requirements_cove_dev.txt
index 00e6281..41fb3c9 100644
--- a/requirements_cove_dev.txt
+++ b/requirements_cove_dev.txt
@@ -137,7 +137,7 @@ libcoveweb==0.31.2
     # via -r requirements_cove.in
 libsass==0.23.0
     # via -r requirements_cove_dev.in
-lxml==5.3.1
+lxml==6.1.0
     # via flattentool
 markupsafe==3.0.2
     # via
diff --git a/requirements_cove_dokku.txt b/requirements_cove_dokku.txt
index c6b5889..6314578 100644
--- a/requirements_cove_dokku.txt
+++ b/requirements_cove_dokku.txt
@@ -102,7 +102,7 @@ libcove==0.31.0
     #   libcoveweb
 libcoveweb==0.31.2
     # via -r requirements_cove.txt
-lxml==5.3.1
+lxml==6.1.0
     # via
     #   -r requirements_cove.txt
     #   flattentool