diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index be18acfc..f2000fd4 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v4.0.0
       with:
         fetch-depth: 0
     - name: Get changed files in the docs folders and the test folders of all modules
diff --git a/.github/workflows/verify.yml b/.github/workflows/verify.yml
index fd24c9b7..7de84b9a 100644
--- a/.github/workflows/verify.yml
+++ b/.github/workflows/verify.yml
@@ -14,7 +14,7 @@ jobs:
     name: Verify source code changes on Java ${{ matrix.Java }} 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v4
+      uses: actions/checkout@v4.0.0
     - name: Get changed source files or maven poms of all modules
       id: changed-files-specific
       uses: tj-actions/changed-files@v39