diff --git a/.github/workflows/check-update.yml b/.github/workflows/check-update.yml
index a086144..1e28fcf 100644
--- a/.github/workflows/check-update.yml
+++ b/.github/workflows/check-update.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout Code
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
       with:
         token: ${{ secrets.GH_PAT }}
     - run: |
diff --git a/.github/workflows/docker-image.yml b/.github/workflows/docker-image.yml
index d424cb9..0539eaf 100644
--- a/.github/workflows/docker-image.yml
+++ b/.github/workflows/docker-image.yml
@@ -11,13 +11,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Dockerfile
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Set version based on tag
         run: echo "RELEASE_VERSION=${GITHUB_REF#refs/*/}" >> $GITHUB_ENV
 
       - name: Checkout Gnuboard GIT
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
         with:
           repository: gnuboard/gnuboard5
           ref: ${{ env.RELEASE_VERSION }}