diff --git a/composer.lock b/composer.lock
index 6ec672f..124c6c3 100644
--- a/composer.lock
+++ b/composer.lock
@@ -999,32 +999,32 @@
     "packages-dev": [
         {
             "name": "doctrine/instantiator",
-            "version": "1.0.5",
+            "version": "1.1.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/doctrine/instantiator.git",
-                "reference": "8e884e78f9f0eb1329e445619e04456e64d8051d"
+                "reference": "185b8868aa9bf7159f5f953ed5afb2d7fcdc3bda"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/instantiator/zipball/8e884e78f9f0eb1329e445619e04456e64d8051d",
-                "reference": "8e884e78f9f0eb1329e445619e04456e64d8051d",
+                "url": "https://api.github.com/repos/doctrine/instantiator/zipball/185b8868aa9bf7159f5f953ed5afb2d7fcdc3bda",
+                "reference": "185b8868aa9bf7159f5f953ed5afb2d7fcdc3bda",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3,<8.0-DEV"
+                "php": "^7.1"
             },
             "require-dev": {
                 "athletic/athletic": "~0.1.8",
                 "ext-pdo": "*",
                 "ext-phar": "*",
-                "phpunit/phpunit": "~4.0",
-                "squizlabs/php_codesniffer": "~2.0"
+                "phpunit/phpunit": "^6.2.3",
+                "squizlabs/php_codesniffer": "^3.0.2"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.0.x-dev"
+                    "dev-master": "1.2.x-dev"
                 }
             },
             "autoload": {
@@ -1049,7 +1049,7 @@
                 "constructor",
                 "instantiate"
             ],
-            "time": "2015-06-14T21:17:01+00:00"
+            "time": "2017-07-22T11:58:36+00:00"
         },
         {
             "name": "ffmpeg/ffmpeg",
@@ -1067,16 +1067,16 @@
         },
         {
             "name": "heroku/heroku-buildpack-php",
-            "version": "v125",
+            "version": "v126",
             "source": {
                 "type": "git",
                 "url": "https://github.com/heroku/heroku-buildpack-php.git",
-                "reference": "880d625f715680aca2969562b8a5a69f4a289b7f"
+                "reference": "8288ddb4b717019f5e39db384e3a9a5b41d73e93"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/heroku/heroku-buildpack-php/zipball/880d625f715680aca2969562b8a5a69f4a289b7f",
-                "reference": "880d625f715680aca2969562b8a5a69f4a289b7f",
+                "url": "https://api.github.com/repos/heroku/heroku-buildpack-php/zipball/8288ddb4b717019f5e39db384e3a9a5b41d73e93",
+                "reference": "8288ddb4b717019f5e39db384e3a9a5b41d73e93",
                 "shasum": ""
             },
             "bin": [
@@ -1107,7 +1107,7 @@
                 "nginx",
                 "php"
             ],
-            "time": "2017-10-04T22:42:04+00:00"
+            "time": "2017-10-28T00:17:41+00:00"
         },
         {
             "name": "myclabs/deep-copy",