diff --git a/.github/workflows/update-flake.yml b/.github/workflows/update-flake.yml
index 1595b9e..6d000ae 100644
--- a/.github/workflows/update-flake.yml
+++ b/.github/workflows/update-flake.yml
@@ -17,3 +17,5 @@ jobs:
         with:
           pr-title: "flake: update flake.lock"
           pr-reviewers: itepastra
+      - run: nix build
+      - run: nix flake check