diff --git a/.travis.yml b/.travis.yml
index f2b8dd1..ad43dc4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,10 @@
 rvm:
   - jruby-18mode
   - jruby-19mode
+  - jruby-head
+#env:
+#  - JRUBY_OPTS="--1.8"
+#  - JRUBY_OPTS="--1.9"
 branches:
   only:
     - master