diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a19772b..63608e3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - uses: cachix/install-nix-action@v26
+    - uses: cachix/install-nix-action@V27
     - name: Build
       run: nix-build
     - name: Link check