.travis.yml in deface-1.3.1 vs .travis.yml in deface-1.3.2

@@ -1,17 +1,14 @@
 script: "bundle exec rake"
 rvm:
-  - 2.1.10
-  - 2.2.5
-  - 2.3.1
+  - 2.3.7
+  - 2.4.4
+  - 2.5.1
 gemfile:
-  - gemfiles/rails_4.1.gemfile
   - gemfiles/rails_4.2.gemfile
   - gemfiles/rails_5.0.gemfile
-matrix:
-  exclude:
-    - rvm: 2.1.10
-      gemfile: gemfiles/rails_5.0.gemfile
+  - gemfiles/rails_5.1.gemfile
+  - gemfiles/rails_5.2.gemfile
 notifications:
   email:
     - [e-mail]
     - [e-mail]