diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2ede0d6..e77e99c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,7 +27,7 @@ jobs:
       - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
 
       - name: Set up JDK 21
-        uses: actions/setup-java@b6effb05e454b25005698d916606bdc6ffcbf961 # v5
+        uses: actions/setup-java@de7274f081f381c8f8158605e0321c36c376e2e6 # v6.0.1
         with:
           java-version: '21'
           distribution: 'temurin'
@@ -35,17 +35,17 @@ jobs:
       # Verify gradle-wrapper.jar matches a known-good Gradle release checksum before it is
       # executed — guards against a tampered wrapper jar (a classic build-time backdoor).
       - name: Validate Gradle wrapper
-        uses: gradle/actions/wrapper-validation@9c971963bec38e04b3d30dcc455b5382be2fdbfb # v6
+        uses: gradle/actions/wrapper-validation@3f5f9adaf7d9fecd50b5935e54106014257a94e6 # v6
 
       - name: Set up Gradle
-        uses: gradle/actions/setup-gradle@9c971963bec38e04b3d30dcc455b5382be2fdbfb # v6
+        uses: gradle/actions/setup-gradle@3f5f9adaf7d9fecd50b5935e54106014257a94e6 # v6
 
       - name: Build and test
         run: ./gradlew clean build test --stacktrace
 
       - name: Upload JaCoCo reports
         if: always()
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a # v7
+        uses: actions/upload-artifact@cf430e030ddbb5b0abf93d22962f4752f3646cd9 # v7
         with:
           name: jacoco-reports
           path: '**/build/reports/jacoco/**'