diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e8e92dc..585f4a7 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -105,7 +105,7 @@ jobs:
 
 
     - name: Git Checkout
-      uses: actions/checkout@v4  # https://github.com/actions/checkout
+      uses: actions/checkout@v5  # https://github.com/actions/checkout
 
 
     - name: "Install: Chromium Browser"
@@ -292,7 +292,7 @@ jobs:
 
     steps:
     - name: Git Checkout # required to avoid https://docs.codecov.com/docs/error-reference#unusable-reports
-      uses: actions/checkout@v4  # https://github.com/actions/checkout
+      uses: actions/checkout@v5  # https://github.com/actions/checkout
 
 
     - name: Download coverage reports
@@ -380,7 +380,7 @@ jobs:
 
     - name: Git Checkout
       # only required by "gh release create" to prevent "fatal: Not a git repository"
-      uses: actions/checkout@v4  # https://github.com/actions/checkout
+      uses: actions/checkout@v5  # https://github.com/actions/checkout
 
 
     - name: Delete untagged docker image
diff --git a/.github/workflows/codeql-analysis.yml b/.github/workflows/codeql-analysis.yml
index c9e99a6..4d0b370 100644
--- a/.github/workflows/codeql-analysis.yml
+++ b/.github/workflows/codeql-analysis.yml
@@ -59,7 +59,7 @@ jobs:
 
 
     - name: Git checkout
-      uses: actions/checkout@v4  # https://github.com/actions/checkout
+      uses: actions/checkout@v5  # https://github.com/actions/checkout
 
 
     - name: "Install Python and PDM"  # https://github.com/pdm-project/setup-pdm
diff --git a/.github/workflows/stale.yml b/.github/workflows/stale.yml
index ea559b4..985801c 100644
--- a/.github/workflows/stale.yml
+++ b/.github/workflows/stale.yml
@@ -18,7 +18,7 @@ jobs:
 
     steps:
     - name: Git checkout
-      uses: actions/checkout@v4  # https://github.com/actions/checkout
+      uses: actions/checkout@v5  # https://github.com/actions/checkout
 
     - name: Run stale action
       uses: actions/stale@v9  # https://github.com/actions/stale
diff --git a/.github/workflows/update-python-deps.yml b/.github/workflows/update-python-deps.yml
index 5c6334f..d78ae24 100644
--- a/.github/workflows/update-python-deps.yml
+++ b/.github/workflows/update-python-deps.yml
@@ -49,7 +49,7 @@ jobs:
 
 
     - name: Git Checkout
-      uses: actions/checkout@v4  # https://github.com/actions/checkout
+      uses: actions/checkout@v5  # https://github.com/actions/checkout
       with:
         token: ${{ steps.generate_token.outputs.token }}