diff --git a/Gemfile.lock b/Gemfile.lock
index 9f0564b..6e9cab9 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -13,8 +13,8 @@ GEM
       json (>= 1.4.6)
     gherkin (2.9.1-java)
       json (>= 1.4.6)
-    json (1.6.5)
-    json (1.6.5-java)
+    json (2.3.1)
+    json (2.3.1-java)
     nokogiri (1.5.2)
     nokogiri (1.5.2-java)
     rake (0.9.2.2)