diff --git a/Gemfile.lock b/Gemfile.lock
index ca228ba..d012e55 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -61,8 +61,8 @@ GEM
     execjs (2.6.0)
     globalid (0.3.6)
       activesupport (>= 4.1.0)
-    httparty (0.13.7)
-      json (~> 1.8)
+    httparty (0.21.0)
+      mini_mime (>= 1.0.0)
       multi_xml (>= 0.5.2)
     i18n (0.7.0)
     jbuilder (2.4.1)
@@ -72,17 +72,18 @@ GEM
       rails-dom-testing (>= 1, < 3)
       railties (>= 4.2.0)
       thor (>= 0.14, < 2.0)
-    json (1.8.3)
+    json (1.8.6)
     libv8 (3.16.14.13)
     loofah (2.0.3)
       nokogiri (>= 1.5.9)
     mail (2.6.3)
       mime-types (>= 1.16, < 3)
     mime-types (2.99.1)
+    mini_mime (1.1.2)
     mini_portile2 (2.0.0)
     minitest (5.8.4)
     multi_json (1.11.2)
-    multi_xml (0.5.5)
+    multi_xml (0.6.0)
     nokogiri (1.6.7.2)
       mini_portile2 (~> 2.0.0.rc2)
     pg (0.18.1)