diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 130dde8..f719539 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -16,7 +16,7 @@ jobs:
 
     steps:
 
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Setup Python
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/upgrade-python-requirements.yml b/.github/workflows/upgrade-python-requirements.yml
index d428588..1f04914 100644
--- a/.github/workflows/upgrade-python-requirements.yml
+++ b/.github/workflows/upgrade-python-requirements.yml
@@ -23,7 +23,7 @@ jobs:
       - name: setup target branch
         run: echo "target_branch=$(if ['${{ github.event.inputs.branch }}' = '']; then echo 'master'; else echo '${{ github.event.inputs.branch }}'; fi)" >> $GITHUB_ENV
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           ref: ${{ env.target_branch }}