diff --git a/Gemfile.lock b/Gemfile.lock
index c8605e4..cacc6c8 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -157,7 +157,7 @@ GEM
       multi_xml (>= 0.5.2)
     i18n (1.6.0)
       concurrent-ruby (~> 1.0)
-    json (2.2.0)
+    json (2.3.1)
     kaminari (1.1.1)
       activesupport (>= 4.1.0)
       kaminari-actionview (= 1.1.1)