diff --git a/.github/workflows/CD-publish_to_pypi.yml b/.github/workflows/CD-publish_to_pypi.yml
index 0d7e67de..7677e57a 100644
--- a/.github/workflows/CD-publish_to_pypi.yml
+++ b/.github/workflows/CD-publish_to_pypi.yml
@@ -48,7 +48,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/CD-test_publish_to_pypi.yml b/.github/workflows/CD-test_publish_to_pypi.yml
index 9f4ad0d4..e9d707c5 100644
--- a/.github/workflows/CD-test_publish_to_pypi.yml
+++ b/.github/workflows/CD-test_publish_to_pypi.yml
@@ -17,7 +17,7 @@ jobs:
       id-token: write  # Required for OIDC
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Install uv
         uses: astral-sh/setup-uv@v7
         with:
diff --git a/.github/workflows/CI-codeql.yml b/.github/workflows/CI-codeql.yml
index 1ce26cfd..f15a6e97 100644
--- a/.github/workflows/CI-codeql.yml
+++ b/.github/workflows/CI-codeql.yml
@@ -38,7 +38,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       # Initializes the CodeQL tools for scanning.
       - name: Initialize CodeQL
diff --git a/.github/workflows/CI-e2e.yml b/.github/workflows/CI-e2e.yml
index 76f0f4b8..224ca881 100644
--- a/.github/workflows/CI-e2e.yml
+++ b/.github/workflows/CI-e2e.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 15
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - uses: astral-sh/setup-uv@v6
 
diff --git a/.github/workflows/CI-pytests.yml b/.github/workflows/CI-pytests.yml
index 686d9312..cb9b7bb7 100644
--- a/.github/workflows/CI-pytests.yml
+++ b/.github/workflows/CI-pytests.yml
@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Install uv
         uses: astral-sh/setup-uv@v7
diff --git a/.github/workflows/vhs.yml b/.github/workflows/vhs.yml
index 3572e9bf..7960d07b 100644
--- a/.github/workflows/vhs.yml
+++ b/.github/workflows/vhs.yml
@@ -10,7 +10,7 @@ jobs:
   vhs:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
 
       - name: Install uv
         uses: astral-sh/setup-uv@v7