.travis.yml in rake-12.0.0.beta1 vs .travis.yml in rake-12.0.0

@@ -6,10 +6,10 @@
   - 2.1.10
   - 2.2.5
   - 2.3.1
   - ruby-head
   - jruby-1.7.20
-  - jruby-9.1.5.0
+  - jruby-9.1.6.0
   - jruby-head
 before_install:
   - gem install bundler --no-document -v '~> 1.13.3'
 before_script:
   - unset JRUBY_OPTS