diff --git a/composer.lock b/composer.lock
index f9a98b1..5fa0991 100644
--- a/composer.lock
+++ b/composer.lock
@@ -815,33 +815,37 @@
         },
         {
             "name": "guzzlehttp/psr7",
-            "version": "1.5.2",
+            "version": "1.6.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/psr7.git",
-                "reference": "9f83dded91781a01c63574e387eaa769be769115"
+                "reference": "dc784032a3f6f4e7a4b882e272b771f6fe4c37cf"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/psr7/zipball/9f83dded91781a01c63574e387eaa769be769115",
-                "reference": "9f83dded91781a01c63574e387eaa769be769115",
+                "url": "https://api.github.com/repos/guzzle/psr7/zipball/dc784032a3f6f4e7a4b882e272b771f6fe4c37cf",
+                "reference": "dc784032a3f6f4e7a4b882e272b771f6fe4c37cf",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.4.0",
                 "psr/http-message": "~1.0",
-                "ralouphie/getallheaders": "^2.0.5"
+                "ralouphie/getallheaders": "^2.0.5 || ^3.0.0"
             },
             "provide": {
                 "psr/http-message-implementation": "1.0"
             },
             "require-dev": {
+                "ext-zlib": "*",
                 "phpunit/phpunit": "~4.8.36 || ^5.7.27 || ^6.5.8"
             },
+            "suggest": {
+                "zendframework/zend-httphandlerrunner": "Emit PSR-7 responses"
+            },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.5-dev"
+                    "dev-master": "1.6-dev"
                 }
             },
             "autoload": {
@@ -878,7 +882,7 @@
                 "uri",
                 "url"
             ],
-            "time": "2018-12-04T20:46:45+00:00"
+            "time": "2019-06-30T00:37:05+00:00"
         },
         {
             "name": "infection/infection",
@@ -1442,7 +1446,7 @@
                     "homepage": "http://blog.astrumfutura.com"
                 },
                 {
-                    "name": "Théo FIDRY",
+                    "name": "Théo Fidry",
                     "email": "theo.fidry@gmail.com"
                 }
             ],
@@ -2522,24 +2526,24 @@
         },
         {
             "name": "ralouphie/getallheaders",
-            "version": "2.0.5",
+            "version": "3.0.3",
             "source": {
                 "type": "git",
                 "url": "https://github.com/ralouphie/getallheaders.git",
-                "reference": "5601c8a83fbba7ef674a7369456d12f1e0d0eafa"
+                "reference": "120b605dfeb996808c31b6477290a714d356e822"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/ralouphie/getallheaders/zipball/5601c8a83fbba7ef674a7369456d12f1e0d0eafa",
-                "reference": "5601c8a83fbba7ef674a7369456d12f1e0d0eafa",
+                "url": "https://api.github.com/repos/ralouphie/getallheaders/zipball/120b605dfeb996808c31b6477290a714d356e822",
+                "reference": "120b605dfeb996808c31b6477290a714d356e822",
                 "shasum": ""
             },
             "require": {
-                "php": ">=5.3"
+                "php": ">=5.6"
             },
             "require-dev": {
-                "phpunit/phpunit": "~3.7.0",
-                "satooshi/php-coveralls": ">=1.0"
+                "php-coveralls/php-coveralls": "^2.1",
+                "phpunit/phpunit": "^5 || ^6.5"
             },
             "type": "library",
             "autoload": {
@@ -2558,7 +2562,7 @@
                 }
             ],
             "description": "A polyfill for getallheaders.",
-            "time": "2016-02-11T07:05:27+00:00"
+            "time": "2019-03-08T08:55:37+00:00"
         },
         {
             "name": "react/event-loop",