diff --git a/Gemfile.lock b/Gemfile.lock
index 24d3cac..5ed2284 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -262,7 +262,7 @@ GEM
     ipaddress (0.8.3)
     jbuilder (2.9.1)
       activesupport (>= 4.2.0)
-    json (2.2.0)
+    json (2.3.1)
     loofah (2.2.3)
       crass (~> 1.0.2)
       nokogiri (>= 1.5.9)