.travis.yml in asynchronic-1.1.1 vs .travis.yml in asynchronic-1.2.0

@@ -1,10 +1,12 @@
 language: ruby
 rvm:
+  - 1.9.3
   - 2.0
   - 2.1
   - 2.2
   - 2.3.0
+  - 2.4.0
   - jruby
 services:
   - redis-server
 before_install:
   - gem install bundler
\ No newline at end of file