diff --git a/Gemfile.lock b/Gemfile.lock
index 8448a43..607082a 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -57,7 +57,7 @@ GEM
       railties (>= 3.0.0)
     hike (1.2.3)
     i18n (0.6.5)
-    json (1.8.0)
+    json (2.3.1)
     mail (2.5.4)
       mime-types (~> 1.16)
       treetop (~> 1.4.8)