diff --git a/.github/workflows/build_test.yml b/.github/workflows/build_test.yml
index 04c9f21..dde16ec 100644
--- a/.github/workflows/build_test.yml
+++ b/.github/workflows/build_test.yml
@@ -72,7 +72,7 @@ jobs:
         runs-on: ubuntu-latest
         steps:
             - uses: actions/checkout@v2
-            - uses: cachix/install-nix-action@v20
+            - uses: cachix/install-nix-action@v27
               with:
                 github_access_token: ${{ secrets.GITHUB_TOKEN }}
             - uses: actions-rs/toolchain@v1