diff --git a/src/Symfony/Component/Debug/DebugClassLoader.php b/src/Symfony/Component/Debug/DebugClassLoader.php
index 9e071fc7600a..3ff450b70058 100644
--- a/src/Symfony/Component/Debug/DebugClassLoader.php
+++ b/src/Symfony/Component/Debug/DebugClassLoader.php
@@ -391,7 +391,7 @@ public function checkAnnotations(\ReflectionClass $refl, $class)
             foreach ($matches as list(, $parameterType, $parameterName)) {
                 if (!isset($definedParameters[$parameterName])) {
                     $parameterType = trim($parameterType);
-                    self::$annotatedParameters[$class][$method->name][$parameterName] = sprintf('The "%%s::%s()" method will require a new "%s$%s" argument in the next major version of its parent class "%s", not defining it is deprecated.', $method->name, $parameterType ? $parameterType.' ' : '', $parameterName, $method->class);
+                    self::$annotatedParameters[$class][$method->name][$parameterName] = sprintf('The "%%s::%s()" method will require a new "%s$%s" argument in the next major version of its %s "%s", not defining it is deprecated.', $method->name, $parameterType ? $parameterType.' ' : '', $parameterName, interface_exists($class) ? 'interface' : 'parent class', $method->class);
                 }
             }
         }
diff --git a/src/Symfony/Component/ErrorHandler/composer.json b/src/Symfony/Component/ErrorHandler/composer.json
index cfe822f4e8b3..614bd4f5ac1f 100644
--- a/src/Symfony/Component/ErrorHandler/composer.json
+++ b/src/Symfony/Component/ErrorHandler/composer.json
@@ -18,7 +18,7 @@
     "require": {
         "php": "^7.1.3",
         "psr/log": "~1.0",
-        "symfony/debug": "^4.4",
+        "symfony/debug": "^4.4.5",
         "symfony/var-dumper": "^4.4|^5.0"
     },
     "require-dev": {