.travis.yml in retriable-2.0.0 vs .travis.yml in retriable-2.0.1

@@ -1,15 +1,17 @@
 language: ruby
 rvm:
+  - 1.9.3
   - 2.0.0
   - 2.1.5
   - 2.2.0
   - rbx
   - ruby-head
   - jruby-head
 
 matrix:
   allow_failures:
+    - rvm: 1.9.3
     - rvm: ruby-head
     - rvm: jruby-head
 
 addons:
   code_climate: