diff --git a/composer.json b/composer.json
index e301fefa9b..d1379054d7 100644
--- a/composer.json
+++ b/composer.json
@@ -49,8 +49,8 @@
         "lchrusciel/api-test-case": "^5.0",
         "phpspec/phpspec": "^7.0",
         "phpstan/extension-installer": "^1.0",
-        "phpstan/phpstan": "1.5.4",
-        "phpstan/phpstan-doctrine": "1.3.2",
+        "phpstan/phpstan": "^1.8.4",
+        "phpstan/phpstan-doctrine": "^1.3.2",
         "phpstan/phpstan-webmozart-assert": "^1.1",
         "phpunit/phpunit": "^8.5",
         "stripe/stripe-php": "^6.43",