diff --git a/.github/workflows/container.yml b/.github/workflows/container.yml
index 5830ee1..5237b07 100644
--- a/.github/workflows/container.yml
+++ b/.github/workflows/container.yml
@@ -14,7 +14,7 @@ jobs:
     name: Build docker image
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Login to GitHub Container Registry
         uses: docker/login-action@v3
         with:
diff --git a/.github/workflows/pythontests.yml b/.github/workflows/pythontests.yml
index 01bee83..3b93bff 100644
--- a/.github/workflows/pythontests.yml
+++ b/.github/workflows/pythontests.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - name: Set up Python 3.10
       uses: actions/setup-python@v5
       with: