diff --git a/.travis.yml b/.travis.yml
index fd2b214..b7f6289 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,14 @@
 rvm:
   - 1.9.3
   - 2.0.0
-  - 2.1.2
+  - 2.1
+  - 2.2
+  - rbx-2.2.10
+  - jruby-19mode
+  - ruby-head
+  - jruby-head
 
+matrix:
+  allow_failures:
+    - rvm: ruby-head
+    - rvm: jruby-head
diff --git a/Gemfile b/Gemfile
index 6860f33..ba19f5a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -9,7 +9,6 @@ gem 'guard-minitest'
 gem 'guard-spinach'
 gem 'pry'
 
-gem 'redcarpet'
 gem 'yard', '~> 0.8'
 gem 'yard-tomdoc'
 gem 'simplecov', require: false