diff --git a/composer.lock b/composer.lock
index a770723..0da5dc5 100644
--- a/composer.lock
+++ b/composer.lock
@@ -1524,16 +1524,16 @@
         },
         {
             "name": "symfony/yaml",
-            "version": "v3.3.0",
+            "version": "v3.3.6",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/yaml.git",
-                "reference": "885db865f6b2b918404a1fae28f9ac640f71f994"
+                "reference": "ddc23324e6cfe066f3dd34a37ff494fa80b617ed"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/yaml/zipball/885db865f6b2b918404a1fae28f9ac640f71f994",
-                "reference": "885db865f6b2b918404a1fae28f9ac640f71f994",
+                "url": "https://api.github.com/repos/symfony/yaml/zipball/ddc23324e6cfe066f3dd34a37ff494fa80b617ed",
+                "reference": "ddc23324e6cfe066f3dd34a37ff494fa80b617ed",
                 "shasum": ""
             },
             "require": {
@@ -1575,7 +1575,7 @@
             ],
             "description": "Symfony Yaml Component",
             "homepage": "https://symfony.com",
-            "time": "2017-05-28T10:56:20+00:00"
+            "time": "2017-07-23T12:43:26+00:00"
         },
         {
             "name": "zendframework/zend-code",