diff --git a/composer.json b/composer.json
index fca1589..f2d3582 100644
--- a/composer.json
+++ b/composer.json
@@ -14,7 +14,7 @@
     },
     "require": {
         "php": ">=5.4.0",
-        "guzzlehttp/guzzle": "~5.0",
+        "guzzlehttp/guzzle": "^5.3.1",
         "symfony/console": "~2.6",
         "symfony/filesystem": "~2.5",
         "raulfraile/distill": "~0.9,!=0.9.3,!=0.9.4"
diff --git a/composer.lock b/composer.lock
index a669ed0..32c1a8a 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,21 +4,21 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "cccc793e61a124372892d161b632d33d",
-    "content-hash": "b46d584a3de98e7413132f01256a1a5c",
+    "hash": "7587a63f96b596f379d4d830bee56119",
+    "content-hash": "3c97ce42899ed9440a9ef2cc5d78847f",
     "packages": [
         {
             "name": "guzzlehttp/guzzle",
-            "version": "5.3.0",
+            "version": "5.3.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/guzzle/guzzle.git",
-                "reference": "f3c8c22471cb55475105c14769644a49c3262b93"
+                "reference": "70f1fa53b71c4647bf2762c09068a95f77e12fb8"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/f3c8c22471cb55475105c14769644a49c3262b93",
-                "reference": "f3c8c22471cb55475105c14769644a49c3262b93",
+                "url": "https://api.github.com/repos/guzzle/guzzle/zipball/70f1fa53b71c4647bf2762c09068a95f77e12fb8",
+                "reference": "70f1fa53b71c4647bf2762c09068a95f77e12fb8",
                 "shasum": ""
             },
             "require": {
@@ -27,15 +27,9 @@
             },
             "require-dev": {
                 "ext-curl": "*",
-                "phpunit/phpunit": "^4.0",
-                "psr/log": "^1.0"
+                "phpunit/phpunit": "^4.0"
             },
             "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "5.0-dev"
-                }
-            },
             "autoload": {
                 "psr-4": {
                     "GuzzleHttp\\": "src/"
@@ -63,7 +57,7 @@
                 "rest",
                 "web service"
             ],
-            "time": "2015-05-20 03:47:55"
+            "time": "2016-07-15 19:28:39"
         },
         {
             "name": "guzzlehttp/ringphp",