diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 3d399f3..58a0af3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -43,7 +43,7 @@ jobs:
           restore-keys: |
             ${{ runner.os }}-nix-
 
-      - uses: cachix/install-nix-action@v20
+      - uses: cachix/install-nix-action@v21
       - name: Run the test
         run: nix-shell --command 'bazel test //...'
       - name: Build the code