.travis.yml in xkpassword-0.3.1 vs .travis.yml in xkpassword-0.3.2

@@ -1,11 +1,12 @@
 language: ruby
 rvm:
-  - 1.9
-  - 2.0
-  - 2.1
-  - 2.2
-  - 2.3.1
+  - 2.3.8
+  - 2.4.9
+  - 2.5.8
+  - 2.6.6
+  - 2.7.2
+  - 3.0.0
 before_install: gem install bundler
 script: bundle exec rspec
 addons:
   code_climate:
     repo_token: 1a754006a15f983b39ddc25c65543fab4a956a4ff607a636e135415c5350e4e0