diff --git a/composer.lock b/composer.lock
index fb64b94..f3fcffe 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4249,16 +4249,16 @@
         },
         {
             "name": "symfony/polyfill-php72",
-            "version": "v1.5.0",
+            "version": "v1.10.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-php72.git",
-                "reference": "8abc9097f5001d310f0edba727469c988acc6ea7"
+                "reference": "9050816e2ca34a8e916c3a0ae8b9c2fccf68b631"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-php72/zipball/8abc9097f5001d310f0edba727469c988acc6ea7",
-                "reference": "8abc9097f5001d310f0edba727469c988acc6ea7",
+                "url": "https://api.github.com/repos/symfony/polyfill-php72/zipball/9050816e2ca34a8e916c3a0ae8b9c2fccf68b631",
+                "reference": "9050816e2ca34a8e916c3a0ae8b9c2fccf68b631",
                 "shasum": ""
             },
             "require": {
@@ -4267,7 +4267,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.5-dev"
+                    "dev-master": "1.9-dev"
                 }
             },
             "autoload": {
@@ -4300,7 +4300,7 @@
                 "portable",
                 "shim"
             ],
-            "time": "2017-07-11T13:25:55+00:00"
+            "time": "2018-09-21T13:07:52+00:00"
         },
         {
             "name": "symfony/process",