diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b4ffd1dca..c8962e29d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -74,7 +74,7 @@ jobs:
           composer ci:php:lint
       - id: phpstan
         name: PHPStan
-        if: ${{ always() && steps.install.conclusion == 'success' }}
+        if: ${{ always() && steps.install.conclusion == 'success' && matrix.typo3 == '12' }}
         run: |
           composer ci:php:stan -- --error-format=github
       - id: tests_unit