diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e63ed8f4827de7ea821be839eeea6a60e26f54c9..8f9207eddafd491fee8532c793896d87f3a4a360 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -35,7 +35,7 @@           - nixpkgs=channel:nixos-20.03
     runs-on: ubuntu-latest
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2.3.2
+      uses: actions/checkout@v2.3.1
     - name: Install nix
       uses: cachix/install-nix-action@v10
       with: