test fixed version

Author: dbu

composer.json

@@ -27,7 +27,7 @@
         "symfony/event-dispatcher": "^2.3||^3.0",
         "symfony/options-resolver": "^2.3||^3.0",
         "php-http/client-implementation": "^1.0.0",
-        "php-http/discovery": "^0.6.2",
+        "php-http/discovery": "dev-dbu-patch-1 as 0.6.2",
         "php-http/message": "^0.2.1"
     },
     "require-dev": {