diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e63ed8f..b111017 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -35,7 +35,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2.3.2
+      uses: actions/checkout@v2.3.3
     - name: Install nix
       uses: cachix/install-nix-action@v10
       with: