diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8c5731f..12fc6aa 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@V27
-      - uses: cachix/cachix-action@v14
+      - uses: cachix/cachix-action@v15
         with:
           name: s77-werbematerial
           signingKey: '${{ secrets.CACHIX_SIGNING_KEY }}'