diff --git a/Gemfile.lock b/Gemfile.lock
index c342761..5c206ab 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -17,8 +17,8 @@ GEM
     crack (0.4.0)
       safe_yaml (~> 0.9.0)
     git (1.2.5)
-    httparty (0.10.2)
-      multi_json (~> 1.0)
+    httparty (0.21.0)
+      mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
     i18n (0.6.4)
     jeweler (1.8.4)
@@ -29,9 +29,10 @@ GEM
     json (1.7.7)
     metaclass (0.0.1)
     mime-types (1.24)
+    mini_mime (1.1.2)
     mocha (0.10.5)
       metaclass (~> 0.0.1)
-    multi_json (1.6.1)
+    multi_json (1.15.0)
     multi_xml (0.5.3)
     rake (10.0.3)
     rdoc (3.12.2)