diff --git a/.github/workflows/push.yml b/.github/workflows/push.yml
index 78e38a1..21db20c 100644
--- a/.github/workflows/push.yml
+++ b/.github/workflows/push.yml
@@ -149,11 +149,11 @@ jobs:
             all-build-${{ hashFiles('**/composer.lock') }}
             all-build-
       - name: PHPStan
-        uses: phpDocumentor/phpstan-ga@0.12.3
+        uses: phpDocumentor/phpstan-ga@master
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         with:
-          args: analyse src --level max --configuration phpstan.neon
+          args: analyse src --configuration phpstan.neon
 
   psalm:
     runs-on: ubuntu-latest
diff --git a/Makefile b/Makefile
index a087339..b8c8231 100644
--- a/Makefile
+++ b/Makefile
@@ -17,7 +17,7 @@ phpcs:
 
 .PHONY: phpstan
 phpstan:
-	docker run -it --rm -v${PWD}:/opt/project -w /opt/project phpdoc/phpstan-ga:latest analyse src --no-progress --level max --configuration phpstan.neon
+	docker run -it --rm -v${PWD}:/opt/project -w /opt/project phpdoc/phpstan-ga:latest analyse src --no-progress --configuration phpstan.neon
 
 .PHONY: psaml
 psalm:
diff --git a/phpstan.neon b/phpstan.neon
index b2fd534..1c62d36 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -1,3 +1,4 @@
 parameters:
+    level: max
     checkGenericClassInNonGenericObjectType: false
     checkMissingIterableValueType: false