diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 767fed0..fcef98f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -11,8 +11,8 @@ jobs:
       - uses: actions/checkout@v2
       - uses: cachix/install-nix-action@v20
         with:
-          github_access_token: ${{ secrets.GITHUB_TOKEN }}        
+          github_access_token: ${{ secrets.GITHUB_TOKEN }}
       - name: Run formatter
-        run: nix run nixpkgs#nixpkgs-fmt .
+        run: nix fmt
       - name: Check for changes
         run: git diff --color=always --exit-code