diff --git a/Gemfile.lock b/Gemfile.lock
index 15df790..a2b13d7 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -107,8 +107,8 @@ GEM
       builder (>= 2.1.2)
     highline (1.6.18)
     hike (1.2.3)
-    httparty (0.11.0)
-      multi_json (~> 1.0)
+    httparty (0.21.0)
+      mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
     httpi (1.1.1)
       rack
@@ -127,10 +127,11 @@ GEM
       treetop (~> 1.4.8)
     method_source (0.8.2)
     mime-types (1.23)
+    mini_mime (1.1.2)
     money (5.1.1)
       i18n (~> 0.6.0)
-    multi_json (1.7.7)
-    multi_xml (0.5.4)
+    multi_json (1.15.0)
+    multi_xml (0.6.0)
     nokogiri (1.5.10)
     nori (1.1.5)
     orm_adapter (0.4.0)