diff --git a/.distignore b/.distignore
index c8c1574..8da09a0 100644
--- a/.distignore
+++ b/.distignore
@@ -23,4 +23,5 @@ composer.lock
 grumphp.yml
 package-lock.json
 package.json
+phpstan.neon
 README.md
diff --git a/grumphp.yml b/grumphp.yml
index 834c601..a4cc419 100644
--- a/grumphp.yml
+++ b/grumphp.yml
@@ -7,5 +7,5 @@ grumphp:
     # phpmd:
     #   ruleset: ["cleancode", "naming"]
     phpmnd:
-    # phpstan:
-    #   memory_limit: 512M
+    phpstan:
+      memory_limit: 512M
diff --git a/phpstan.neon b/phpstan.neon
new file mode 100644
index 0000000..ecca280
--- /dev/null
+++ b/phpstan.neon
@@ -0,0 +1,5 @@
+includes:
+    - vendor/szepeviktor/phpstan-wordpress/extension.neon
+
+parameters:
+    level: 3