diff --git a/composer.json b/composer.json
index 7705678ac..034824e6f 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
         "composer/semver": "^3.0",
         "composer/spdx-licenses": "^1.2",
         "composer/xdebug-handler": "^2.0",
-        "justinrainbow/json-schema": "^5.2.10",
+        "justinrainbow/json-schema": "^5.2.11",
         "psr/log": "^1.0",
         "seld/jsonlint": "^1.4",
         "seld/phar-utils": "^1.0",
diff --git a/composer.lock b/composer.lock
index ef4ded9d7..ecd123692 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": "bff3f5b355e45125612dff36a8f71737",
+    "content-hash": "dfe550a024c0c2bb0784765e457968af",
     "packages": [
         {
             "name": "composer/ca-bundle",
diff --git a/src/Composer/Util/ErrorHandler.php b/src/Composer/Util/ErrorHandler.php
index 915bc3fb5..15e1832e9 100644
--- a/src/Composer/Util/ErrorHandler.php
+++ b/src/Composer/Util/ErrorHandler.php
@@ -53,7 +53,7 @@ class ErrorHandler
 
         if (self::$io) {
             // ignore symfony/* deprecation warnings about return types
-            if (preg_match('{^Return type of Symfony\\Component\\.*ReturnTypeWillChange}', $message)) {
+            if (preg_match('{^Return type of Symfony\\\\.*ReturnTypeWillChange}is', $message)) {
                 return true;
             }