diff --git a/Gemfile.lock b/Gemfile.lock
index 783ee09..2a054bb 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -35,15 +35,15 @@ GEM
     ffi (1.1.5)
     hashery (2.1.1)
     hashie (2.1.1)
-    httparty (0.13.1)
-      json (~> 1.8)
+    httparty (0.21.0)
+      mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
-    json (1.8.1)
     libwebsocket (0.1.5)
       addressable
     mime-types (1.19)
+    mini_mime (1.1.2)
     multi_json (1.3.6)
-    multi_xml (0.5.5)
+    multi_xml (0.6.0)
     nokogiri (1.5.5)
     rack (1.4.1)
     rack-test (0.6.1)