diff --git a/composer.json b/composer.json
index 48ff594a..12778c5e 100644
--- a/composer.json
+++ b/composer.json
@@ -13,7 +13,7 @@
         }
     },
     "require-dev": {
-        "friendsofphp/php-cs-fixer": "2.15.2",
+        "friendsofphp/php-cs-fixer": "2.15.3",
         "vimeo/psalm": "3.4.10",
         "phpstan/phpstan": "0.11.12",
         "thecodingmachine/phpstan-safe-rule": "^0.1.3",
diff --git a/composer.lock b/composer.lock
index ff085f14..6f80bad9 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": "c07fe5126834d248bb9ee49cfad3d01d",
+    "content-hash": "140bbe180cf390a0438838f1de38057b",
     "packages": [
         {
             "name": "psr/container",
@@ -899,16 +899,16 @@
         },
         {
             "name": "friendsofphp/php-cs-fixer",
-            "version": "v2.15.2",
+            "version": "v2.15.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/FriendsOfPHP/PHP-CS-Fixer.git",
-                "reference": "c9d30fddfa3feb8b82663104864224f2ce7a3675"
+                "reference": "705490b0f282f21017d73561e9498d2b622ee34c"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/FriendsOfPHP/PHP-CS-Fixer/zipball/c9d30fddfa3feb8b82663104864224f2ce7a3675",
-                "reference": "c9d30fddfa3feb8b82663104864224f2ce7a3675",
+                "url": "https://api.github.com/repos/FriendsOfPHP/PHP-CS-Fixer/zipball/705490b0f282f21017d73561e9498d2b622ee34c",
+                "reference": "705490b0f282f21017d73561e9498d2b622ee34c",
                 "shasum": ""
             },
             "require": {
@@ -938,9 +938,10 @@
                 "php-cs-fixer/accessible-object": "^1.0",
                 "php-cs-fixer/phpunit-constraint-isidenticalstring": "^1.1",
                 "php-cs-fixer/phpunit-constraint-xmlmatchesxsd": "^1.1",
-                "phpunit/phpunit": "^5.7.27 || ^6.5.8 || ^7.1",
+                "phpunit/phpunit": "^5.7.27 || ^6.5.14 || ^7.1",
                 "phpunitgoodpractices/traits": "^1.8",
-                "symfony/phpunit-bridge": "^4.3"
+                "symfony/phpunit-bridge": "^4.3",
+                "symfony/yaml": "^3.0 || ^4.0"
             },
             "suggest": {
                 "ext-mbstring": "For handling non-UTF8 characters in cache signature.",
@@ -983,7 +984,7 @@
                 }
             ],
             "description": "A tool to automatically fix PHP code style",
-            "time": "2019-08-27T16:03:01+00:00"
+            "time": "2019-08-31T12:51:54+00:00"
         },
         {
             "name": "jean85/pretty-package-versions",