diff --git a/composer.json b/composer.json
index 0fc653c..2bbc44d 100644
--- a/composer.json
+++ b/composer.json
@@ -7,7 +7,7 @@
 	],
 	"require": {
 		"php": "^7.4 || ^8.0",
-		"phpstan/phpstan": "^2.0"
+		"phpstan/phpstan": "^2.0.4"
 	},
 	"require-dev": {
 		"php-parallel-lint/php-parallel-lint": "^1.2",
diff --git a/rules.neon b/rules.neon
index f268d24..61b4985 100644
--- a/rules.neon
+++ b/rules.neon
@@ -1,4 +1,5 @@
 parameters:
+	strictRulesInstalled: true
 	polluteScopeWithLoopInitialAssignments: false
 	polluteScopeWithAlwaysIterableForeach: false
 	polluteScopeWithBlock: false