diff --git a/Gemfile.lock b/Gemfile.lock
index bf34e78..4974287 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -97,7 +97,7 @@ GEM
       concurrent-ruby (~> 1.0)
     jbuilder (2.9.1)
       activesupport (>= 4.2.0)
-    json (2.2.0)
+    json (2.3.1)
     jwt (2.2.1)
     launchy (2.4.3)
       addressable (~> 2.3)