diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 4f5a57a..acb5232 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     name: deploy to gh-pages
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - name: Set up Python 3.10
         uses: actions/setup-python@v6
         with:
diff --git a/.github/workflows/testing.yml b/.github/workflows/testing.yml
index 650eca2..e242f86 100644
--- a/.github/workflows/testing.yml
+++ b/.github/workflows/testing.yml
@@ -17,7 +17,7 @@ jobs:
         python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
       with: