diff --git a/Gemfile.lock b/Gemfile.lock
index 76b6382..2a70c6c 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -23,7 +23,7 @@ GEM
     cucumber-wire (0.0.1)
     diff-lcs (1.3)
     gherkin (5.1.0)
-    json (2.2.0)
+    json (2.3.1)
     multi_json (1.13.1)
     multi_test (0.1.2)
     rake (12.3.2)
@@ -39,6 +39,7 @@ GEM
       selenium-webdriver (~> 3.6)
 
 PLATFORMS
+  ruby
   x86-mingw32
 
 DEPENDENCIES