diff --git a/.github/workflows/formatting.yaml b/.github/workflows/formatting.yaml
index 80d9fc40aa8..4436721b829 100644
--- a/.github/workflows/formatting.yaml
+++ b/.github/workflows/formatting.yaml
@@ -33,3 +33,7 @@ jobs:
     - name: 📐 Check hlint
       run: |
         nix build .#checks.x86_64-linux.hlint
+
+    - name: 📐 Check weeder
+      run: |
+        nix develop -command weeder