diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 41fe42e..d5de34d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -9,7 +9,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: cachix/install-nix-action@v24
-      - uses: cachix/cachix-action@v12
+      - uses: cachix/cachix-action@v13
         with:
           name: s77-werbematerial
           signingKey: '${{ secrets.CACHIX_SIGNING_KEY }}'