diff --git a/Gemfile b/Gemfile
index 9d5df3885..a5a0733e8 100644
--- a/Gemfile
+++ b/Gemfile
@@ -267,7 +267,7 @@ group :test do
 
   gem "factory_girl_rails", "4.5.0"
   gem "timecop",            "0.8.0"
-  gem "webmock",            "1.21.0", require: false
+  gem "webmock",            "1.22.1", require: false
   gem "shoulda-matchers",   "3.0.0"
 end
 
diff --git a/Gemfile.lock b/Gemfile.lock
index c5eacda06..c78f66d3d 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -355,6 +355,7 @@ GEM
       multi_json (~> 1.0)
       sprockets (>= 2.0.0, < 4.0)
       tilt (~> 1.2)
+    hashdiff (0.2.2)
     hashie (3.4.2)
     hike (1.2.3)
     hiredis (0.5.2)
@@ -743,9 +744,10 @@ GEM
     valid (1.0.2)
     warden (1.2.3)
       rack (>= 1.0)
-    webmock (1.21.0)
+    webmock (1.22.1)
       addressable (>= 2.3.6)
       crack (>= 0.3.2)
+      hashdiff
     websocket (1.2.2)
     will_paginate (3.0.7)
     xpath (2.0.0)
@@ -879,7 +881,7 @@ DEPENDENCIES
   uglifier (= 2.7.2)
   unicorn (= 4.9.0)
   uuid (= 2.3.8)
-  webmock (= 1.21.0)
+  webmock (= 1.22.1)
   will_paginate (= 3.0.7)
 
 BUNDLED WITH