diff --git a/.github/workflows/build-and-test.yml b/.github/workflows/build-and-test.yml
index 9f2c006..4ecacee 100644
--- a/.github/workflows/build-and-test.yml
+++ b/.github/workflows/build-and-test.yml
@@ -31,7 +31,7 @@ jobs:
           install: true
       - name: login container registry
         run: docker login -u publisher -p ${{ secrets.GITHUB_TOKEN }} ghcr.io
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: pull docker image
         run: |
           docker pull ${{ env.image_name }}:latest
diff --git a/.github/workflows/nix-build.yml b/.github/workflows/nix-build.yml
index a52ee8d..8085b89 100644
--- a/.github/workflows/nix-build.yml
+++ b/.github/workflows/nix-build.yml
@@ -11,7 +11,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - uses: cachix/install-nix-action@v31
       with:
         nix_path: nixpkgs=channel:nixos-unstable