diff --git a/.travis.yml b/.travis.yml
index 5625a78..eb3bce2 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,7 @@
-language: ruby
+\language: ruby
 rvm:
   - 1.8.7
   - 1.9.3
+  - 2.3.3
+  - 2.5.5
 script: bundle exec rake
diff --git a/Gemfile.lock b/Gemfile.lock
index 235b6be..1290add 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -27,7 +27,7 @@ GEM
     gherkin (2.10.0)
       json (>= 1.4.6)
     hpricot (0.8.6)
-    json (1.7.3)
+    json (2.3.0)
     multi_json (1.3.5)
     mustache (0.99.4)
     rack (1.4.1)