diff --git a/.travis.yml b/.travis.yml
index 604f5ac..b219bc0 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,5 +3,9 @@ rvm:
   - 1.8.7
   - 1.9.3
   - 2.0.0
+  - 2.1.0
   - jruby-19mode
-  - rbx-19mode
+  - rbx
+matrix:
+  allow_failures:
+    - rvm: rbx
diff --git a/Gemfile b/Gemfile
index 5605ee4..884ada2 100644
--- a/Gemfile
+++ b/Gemfile
@@ -22,3 +22,7 @@ end
 platforms :mri, :jruby do
   gem "typhoeus", "~> 0.5"
 end
+
+platforms :rbx do
+  gem "rubysl", "~> 2.0"
+end