diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 7bec9ce..f268427 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -36,7 +36,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2.3.3
+      uses: actions/checkout@v2.3.4
     - name: Install nix
       uses: cachix/install-nix-action@v11
       with: