diff --git a/Gemfile.lock b/Gemfile.lock
index 1f6c154..217ad73 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -8,8 +8,8 @@ GEM
   remote: https://rubygems.org/
   specs:
     diff-lcs (1.3)
-    json (2.1.0)
-    json (2.1.0-java)
+    json (2.6.3)
+    json (2.6.3-java)
     multi_json (1.13.1)
     rake (10.5.0)
     rspec (3.7.0)