diff --git a/composer.json b/composer.json
index 73f6517343..5cb869928a 100644
--- a/composer.json
+++ b/composer.json
@@ -63,7 +63,7 @@
         "phpstan/phpstan": "0.12.71",
         "phpstan/phpstan-doctrine": "0.12.30",
         "phpstan/phpstan-phpunit": "0.12.17",
-        "phpstan/phpstan-symfony": "0.12.16",
+        "phpstan/phpstan-symfony": "0.12.21",
         "phpunit/phpunit": "^9.2",
         "symfony/browser-kit": "^5.0",
         "symfony/maker-bundle": "*",
diff --git a/composer.lock b/composer.lock
index 566eebae4c..77b6305784 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "7c20405d89a1fc1883ae84eaee220e3c",
+    "content-hash": "3635a716bb6c99554ea699d5c4cba005",
     "packages": [
         {
             "name": "beberlei/doctrineextensions",
@@ -14780,16 +14780,16 @@
         },
         {
             "name": "phpstan/phpstan-symfony",
-            "version": "0.12.16",
+            "version": "0.12.21",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan-symfony.git",
-                "reference": "c50afb8f4e27d4ab3b47ac370838aefac3c15e9e"
+                "reference": "9cd6919b8c695206dc24b5b5e8a082cd3b8f4c05"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan-symfony/zipball/c50afb8f4e27d4ab3b47ac370838aefac3c15e9e",
-                "reference": "c50afb8f4e27d4ab3b47ac370838aefac3c15e9e",
+                "url": "https://api.github.com/repos/phpstan/phpstan-symfony/zipball/9cd6919b8c695206dc24b5b5e8a082cd3b8f4c05",
+                "reference": "9cd6919b8c695206dc24b5b5e8a082cd3b8f4c05",
                 "shasum": ""
             },
             "require": {
@@ -14806,6 +14806,7 @@
                 "phpstan/phpstan-phpunit": "^0.12.16",
                 "phpstan/phpstan-strict-rules": "^0.12.5",
                 "phpunit/phpunit": "^7.5.20",
+                "symfony/config": "^4.2",
                 "symfony/console": "^4.0",
                 "symfony/framework-bundle": "^4.0",
                 "symfony/http-foundation": "^4.0",
@@ -14843,9 +14844,9 @@
             "description": "Symfony Framework extensions and rules for PHPStan",
             "support": {
                 "issues": "https://github.com/phpstan/phpstan-symfony/issues",
-                "source": "https://github.com/phpstan/phpstan-symfony/tree/0.12.16"
+                "source": "https://github.com/phpstan/phpstan-symfony/tree/0.12.21"
             },
-            "time": "2021-01-25T12:30:55+00:00"
+            "time": "2021-03-08T21:32:49+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",