diff --git a/Gemfile.lock b/Gemfile.lock
index a495cd5..5a8e758 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -6,7 +6,7 @@ GEM
       addressable (~> 2.2)
       multipart-post (~> 1.1)
       rack (~> 1.1)
-    json (1.7.5)
+    json (2.1.0)
     multi_json (1.3.6)
     multipart-post (1.1.5)
     oauth2 (0.5.2)