diff --git a/.github/workflows/gradle-wrapper-validation.yml b/.github/workflows/gradle-wrapper-validation.yml
index a93f81b..0c1588c 100644
--- a/.github/workflows/gradle-wrapper-validation.yml
+++ b/.github/workflows/gradle-wrapper-validation.yml
@@ -6,5 +6,5 @@ jobs:
     name: "Validation"
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
-      - uses: gradle/actions/wrapper-validation@v5
+      - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+      - uses: gradle/actions/wrapper-validation@3f131e8634966bd73d06cc69884922b02e6faf92 # v6.2.0
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 23534a9..68d7aa1 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -19,21 +19,21 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: 'Checkout'
-        uses: actions/checkout@v6
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       - name: 'Set up JDK'
-        uses: actions/setup-java@v5
+        uses: actions/setup-java@1bcf9fb12cf4aa7d266a90ae39939e61372fe520 # v5.4.0
         with:
           distribution: 'zulu'
           java-version: ${{ matrix.version.jdk }}
       - name: Setup Gradle
-        uses: gradle/actions/setup-gradle@v5
+        uses: gradle/actions/setup-gradle@3f131e8634966bd73d06cc69884922b02e6faf92 # v6.2.0
       - name: 'Test'
         run: ./gradlew --warning-mode=all build
       - name: 'Generate coverage report'
         run: ./gradlew --warning-mode=all jacocoTestReport
       - name: 'Upload coverage to Codecov'
         if: github.repository == 'mapstruct/mapstruct-idea' &&  matrix.version.idea  == '2025.1'
-        uses: codecov/codecov-action@v7
+        uses: codecov/codecov-action@fb8b3582c8e4def4969c97caa2f19720cb33a72f # v7.0.0
         with:
           fail_ci_if_error: true
           token: ${{ secrets.CODECOV_TOKEN }}