diff --git a/.github/workflows/check.yml b/.github/workflows/check.yml
index f1b48ff..b93b9a5 100644
--- a/.github/workflows/check.yml
+++ b/.github/workflows/check.yml
@@ -51,3 +51,6 @@ jobs:
 
     - name: Run phpcs
       run: composer phpcs-diff
+
+    - name: Run phpstan
+      run: composer phpstan