diff --git a/Gemfile.lock b/Gemfile.lock
index 0baf3151..b9c58c56 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -26,7 +26,7 @@ GEM
     http-cookie (1.0.3)
       domain_name (~> 0.5)
     i18n (0.7.0)
-    json (2.1.0)
+    json (2.3.1)
     macaddr (1.7.1)
       systemu (~> 2.6.2)
     mail (2.6.4)