diff --git a/Gemfile.lock b/Gemfile.lock
index 2f95569..12d1f96 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -120,8 +120,8 @@ GEM
     jaro_winkler (1.5.2-java)
     jbuilder (2.9.1)
       activesupport (>= 4.2.0)
-    json (2.2.0)
-    json (2.2.0-java)
+    json (2.3.1)
+    json (2.3.1-java)
     launchy (2.4.3)
       addressable (~> 2.3)
     launchy (2.4.3-java)