diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index e7f47a0..ad95cec 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -33,5 +33,5 @@ jobs:
           name: alejandr0angul0-resume
           authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
       - run: nix build
-      - run: nix flake check
+      - run: nix flake check --impure
       - run: nix run