diff --git a/Gemfile.lock b/Gemfile.lock
index e276070..441f0ad 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -25,7 +25,7 @@ GEM
       json (>= 1.4.6)
     gherkin (2.11.5-x86-mingw32)
       json (>= 1.4.6)
-    json (2.2.0)
+    json (2.3.1)
     rake (10.0.3)
     rspec (2.12.0)
       rspec-core (~> 2.12.0)