diff --git a/Gemfile b/Gemfile
index f0f2e4395..83ec9b4a7 100644
--- a/Gemfile
+++ b/Gemfile
@@ -157,4 +157,5 @@ end
 group :test do
   gem 'database_cleaner'
   gem 'factory_girl_rails'
+  gem 'webmock'
 end
diff --git a/Gemfile.lock b/Gemfile.lock
index f608c4c9f..31ecaeb02 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -257,6 +257,7 @@ GEM
       haml (>= 4.0.6, < 5.0)
       html2haml (>= 1.0.1)
       railties (>= 4.0.1)
+    hashdiff (0.3.1)
     hashie (3.4.2)
     hashie-forbidden_attributes (0.1.1)
       hashie (>= 3.0)
@@ -556,6 +557,10 @@ GEM
     wasabi (3.5.0)
       httpi (~> 2.0)
       nokogiri (>= 1.4.2)
+    webmock (2.1.0)
+      addressable (>= 2.3.6)
+      crack (>= 0.3.2)
+      hashdiff
     websocket-driver (0.6.2)
       websocket-extensions (>= 0.1.0)
     websocket-extensions (0.1.2)
@@ -647,6 +652,7 @@ DEPENDENCIES
   unicorn
   uuidtools (= 2.1.5)
   validates_email_format_of (= 1.6.3)
+  webmock
   whenever (= 0.9.4)
 
 BUNDLED WITH