diff --git a/.github/workflows/publish-maven-central.yml b/.github/workflows/publish-maven-central.yml
index b7ea416..1c715de 100644
--- a/.github/workflows/publish-maven-central.yml
+++ b/.github/workflows/publish-maven-central.yml
@@ -113,7 +113,7 @@ jobs:
           fi
 
           echo "  Will publish local version ${local_version} (remote='${remote_version}')."
-          ./gradlew --no-daemon publishAllPublicationsToCentralPortal
+          ./gradlew --no-daemon -PskipSampleApp=true publishAllPublicationsToCentralPortal
           gradle_exit=$?
           if [[ $gradle_exit -ne 0 ]]; then
             echo "Gradle publish failed with exit code $gradle_exit"
diff --git a/build.gradle.kts b/build.gradle.kts
index ce4d0ef..af80bd2 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -76,6 +76,9 @@ val libraryArtifactId = "for-here"
 val libraryVersion = project.findProperty("libraryVersion") as String? ?: "1.0.0"
 
 dependencies {
+    // CancellableContinuation.resume の 3 引数 onCancellation は coroutines 1.9 以降。
+    // 明示しないと推移的に古い版が入り、単体ビルドだけがコンパイルエラーになる。
+    implementation(libs.kotlinx.coroutines.android)
 
     implementation(platform(libs.androidx.compose.bom)) // BOM manages Compose artifact versions.
     implementation(libs.androidx.ui)
diff --git a/gradle/libs.versions.toml b/gradle/libs.versions.toml
index da5bf57..353e813 100644
--- a/gradle/libs.versions.toml
+++ b/gradle/libs.versions.toml
@@ -1,4 +1,5 @@
 [versions]
+coroutines = "1.9.0"
 composeLibs = "1.7.8"
 agp = "9.2.1"
 kotlin = "2.0.21"
@@ -13,6 +14,7 @@ junitVersion = "1.3.0"
 espressoCore = "3.7.0"
 
 [libraries]
+kotlinx-coroutines-android = { group = "org.jetbrains.kotlinx", name = "kotlinx-coroutines-android", version.ref = "coroutines" }
 # Jetpack Compose (with BOM)
 androidx-compose-bom = { group = "androidx.compose", name = "compose-bom", version.ref = "composeBom" }
 androidx-ui = { group = "androidx.compose.ui", name = "ui", version.ref = "composeLibs" }