diff --git a/src/Symfony/Component/HttpKernel/DependencyInjection/RegisterControllerArgumentLocatorsPass.php b/src/Symfony/Component/HttpKernel/DependencyInjection/RegisterControllerArgumentLocatorsPass.php
index cb88594e3a..cb05f6fbeb 100644
--- a/src/Symfony/Component/HttpKernel/DependencyInjection/RegisterControllerArgumentLocatorsPass.php
+++ b/src/Symfony/Component/HttpKernel/DependencyInjection/RegisterControllerArgumentLocatorsPass.php
@@ -60,7 +60,7 @@ class RegisterControllerArgumentLocatorsPass implements CompilerPassInterface
             while ($def instanceof ChildDefinition) {
                 $def = $container->findDefinition($def->getParent());
                 $class = $class ?: $def->getClass();
-                $bindings = $def->getBindings();
+                $bindings += $def->getBindings();
             }
             $class = $parameterBag->resolveValue($class);
 
diff --git a/src/Symfony/Component/HttpKernel/Tests/DependencyInjection/RegisterControllerArgumentLocatorsPassTest.php b/src/Symfony/Component/HttpKernel/Tests/DependencyInjection/RegisterControllerArgumentLocatorsPassTest.php
index 4016deb4ab..a3f8d8dfb4 100644
--- a/src/Symfony/Component/HttpKernel/Tests/DependencyInjection/RegisterControllerArgumentLocatorsPassTest.php
+++ b/src/Symfony/Component/HttpKernel/Tests/DependencyInjection/RegisterControllerArgumentLocatorsPassTest.php
@@ -13,6 +13,7 @@ namespace Symfony\Component\HttpKernel\Tests\DependencyInjection;
 
 use PHPUnit\Framework\TestCase;
 use Symfony\Component\DependencyInjection\Argument\ServiceClosureArgument;
+use Symfony\Component\DependencyInjection\ChildDefinition;
 use Symfony\Component\DependencyInjection\ContainerAwareInterface;
 use Symfony\Component\DependencyInjection\ContainerAwareTrait;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
@@ -326,6 +327,29 @@ class RegisterControllerArgumentLocatorsPassTest extends TestCase
         $locator = $container->getDefinition((string) $resolver->getArgument(0))->getArgument(0);
         $this->assertEmpty($locator);
     }
+
+    public function testBindingsOnChildDefinitions()
+    {
+        $container = new ContainerBuilder();
+        $resolver = $container->register('argument_resolver.service')->addArgument(array());
+
+        $container->register('parent', ArgumentWithoutTypeController::class);
+
+        $container->setDefinition('child', (new ChildDefinition('parent'))
+            ->setBindings(array('$someArg' => new Reference('parent')))
+            ->addTag('controller.service_arguments')
+        );
+
+        $pass = new RegisterControllerArgumentLocatorsPass();
+        $pass->process($container);
+
+        $locator = $container->getDefinition((string) $resolver->getArgument(0))->getArgument(0);
+        $this->assertInstanceOf(ServiceClosureArgument::class, $locator['child:fooAction']);
+
+        $locator = $container->getDefinition((string) $locator['child:fooAction']->getValues()[0])->getArgument(0);
+        $this->assertInstanceOf(ServiceClosureArgument::class, $locator['someArg']);
+        $this->assertEquals(new Reference('parent'), $locator['someArg']->getValues()[0]);
+    }
 }
 
 class RegisterTestController
diff --git a/src/Symfony/Component/HttpKernel/composer.json b/src/Symfony/Component/HttpKernel/composer.json
index 585ab5b37d..9ad3877ba1 100644
--- a/src/Symfony/Component/HttpKernel/composer.json
+++ b/src/Symfony/Component/HttpKernel/composer.json
@@ -29,7 +29,7 @@
         "symfony/config": "~2.8|~3.0|~4.0",
         "symfony/console": "~2.8|~3.0|~4.0",
         "symfony/css-selector": "~2.8|~3.0|~4.0",
-        "symfony/dependency-injection": "^3.4.5|^4.0.5",
+        "symfony/dependency-injection": "^3.4.10|^4.0.10",
         "symfony/dom-crawler": "~2.8|~3.0|~4.0",
         "symfony/expression-language": "~2.8|~3.0|~4.0",
         "symfony/finder": "~2.8|~3.0|~4.0",
@@ -46,7 +46,7 @@
     },
     "conflict": {
         "symfony/config": "<2.8",
-        "symfony/dependency-injection": "<3.4.5|<4.0.5,>=4",
+        "symfony/dependency-injection": "<3.4.10|<4.0.10,>=4",
         "symfony/var-dumper": "<3.3",
         "twig/twig": "<1.34|<2.4,>=2"
     },