diff --git a/Gemfile.lock b/Gemfile.lock
index a7f98b9..4cb2139 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -94,7 +94,7 @@ GEM
     i18n (1.7.0)
       concurrent-ruby (~> 1.0)
     ice_nine (0.11.2)
-    json (2.2.0)
+    json (2.3.1)
     kwalify (0.7.2)
     launchy (2.4.3)
       addressable (~> 2.3)