diff --git a/.gitea/workflows/nix.yml b/.gitea/workflows/nix.yml
index 01d1154..2d91609 100644
--- a/.gitea/workflows/nix.yml
+++ b/.gitea/workflows/nix.yml
@@ -14,4 +14,4 @@ jobs:
           submodules: true
           token: "${{ secrets.REPO_PAT }}"
       - run: |
-          NIXPKGS_ALLOW_BROKEN=1 nix flake check --allow-import-from-derivation --keep-going --impure
+          NIXPKGS_ALLOW_BROKEN=1 NIXPKGS_ALLOW_UNFREE=1 nix flake check --allow-import-from-derivation --keep-going --impure