diff --git a/Gemfile.lock b/Gemfile.lock
index 2fe71cb..d5ab7f0 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -13,9 +13,11 @@ GEM
     equalizer (0.0.11)
     faraday (0.12.1)
       multipart-post (>= 1.2, < 3)
-    httparty (0.15.5)
+    httparty (0.21.0)
+      mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
     ice_nine (0.11.2)
+    mini_mime (1.1.2)
     mini_portile2 (2.6.1)
     multi_xml (0.6.0)
     multipart-post (2.0.0)