diff --git a/composer.json b/composer.json
index 6e655a69..56f683a9 100644
--- a/composer.json
+++ b/composer.json
@@ -24,10 +24,9 @@
     },
     "require-dev": {
         "phpdocumentor/phpdocumentor": "2.*",
-        "phpunit/phpunit": "4.*"
+        "phpunit/phpunit": "4.7.*"
     },
     "suggest": {
-        "league/oauth2-client": "Needed for XOAUTH2 authentication",
         "league/oauth2-google": "Needed for Gmail XOAUTH2"
     },
     "autoload": {
diff --git a/composer.lock b/composer.lock
index 96c54475..3da6bef6 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,8 +4,8 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "a8d788b755f616f054fd139407f11632",
-    "content-hash": "7a29f5f89d8a23ec75270d6dfcb13d2b",
+    "hash": "a429c95dbdbbd148875d5439f2573a6c",
+    "content-hash": "b9b55ea56a3d102706244316ea5e3ede",
     "packages": [],
     "packages-dev": [
         {
@@ -1553,16 +1553,16 @@
         },
         {
             "name": "phpunit/phpunit",
-            "version": "4.8.16",
+            "version": "4.7.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/phpunit.git",
-                "reference": "625f8c345606ed0f3a141dfb88f4116f0e22978e"
+                "reference": "9b97f9d807b862c2de2a36e86690000801c85724"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/625f8c345606ed0f3a141dfb88f4116f0e22978e",
-                "reference": "625f8c345606ed0f3a141dfb88f4116f0e22978e",
+                "url": "https://api.github.com/repos/sebastianbergmann/phpunit/zipball/9b97f9d807b862c2de2a36e86690000801c85724",
+                "reference": "9b97f9d807b862c2de2a36e86690000801c85724",
                 "shasum": ""
             },
             "require": {
@@ -1572,7 +1572,7 @@
                 "ext-reflection": "*",
                 "ext-spl": "*",
                 "php": ">=5.3.3",
-                "phpspec/prophecy": "^1.3.1",
+                "phpspec/prophecy": "~1.3,>=1.3.1",
                 "phpunit/php-code-coverage": "~2.1",
                 "phpunit/php-file-iterator": "~1.4",
                 "phpunit/php-text-template": "~1.2",
@@ -1580,7 +1580,7 @@
                 "phpunit/phpunit-mock-objects": "~2.3",
                 "sebastian/comparator": "~1.1",
                 "sebastian/diff": "~1.2",
-                "sebastian/environment": "~1.3",
+                "sebastian/environment": "~1.2",
                 "sebastian/exporter": "~1.2",
                 "sebastian/global-state": "~1.0",
                 "sebastian/version": "~1.0",
@@ -1595,7 +1595,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.8.x-dev"
+                    "dev-master": "4.7.x-dev"
                 }
             },
             "autoload": {
@@ -1621,7 +1621,7 @@
                 "testing",
                 "xunit"
             ],
-            "time": "2015-10-23 06:48:33"
+            "time": "2015-07-13 11:28:34"
         },
         {
             "name": "phpunit/phpunit-mock-objects",