diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 2e5f5c7..24e2d8e 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -46,7 +46,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
       - uses: cachix/install-nix-action@v31
-      - uses: cachix/cachix-action@v31
+      - uses: cachix/cachix-action@v15
         with:
           name: stackage-infrastructure
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'