diff --git a/Gemfile.lock b/Gemfile.lock
index fe71c4b..6b7a9ae 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -66,8 +66,8 @@ GEM
     highline (1.6.21)
     http-cookie (1.0.2)
       domain_name (~> 0.5)
-    httparty (0.13.3)
-      json (~> 1.8)
+    httparty (0.21.0)
+      mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
     i18n (0.6.11)
     jeweler (2.0.1)
@@ -79,15 +79,16 @@ GEM
       nokogiri (>= 1.5.10)
       rake
       rdoc
-    json (1.8.1)
+    json (1.8.6)
     jwt (1.2.0)
     kgio (2.9.2)
     method_source (0.8.2)
     mime-types (2.99)
+    mini_mime (1.1.2)
     mini_portile (0.6.1)
     minitest (5.5.0)
     multi_json (1.10.1)
-    multi_xml (0.5.5)
+    multi_xml (0.6.0)
     multipart-post (2.0.0)
     netrc (0.11.0)
     nokogiri (1.6.5)