Update the .travis.yml

ttanimichi · ttanimichi · commit 80fad1b0624f · 2018-05-07T14:20:09.000+09:00
diff --git a/.travis.yml b/.travis.yml
@@ -23,6 +23,7 @@ gemfile:
   - gemfiles/rails_4.2_sprockets_3.gemfile
   - gemfiles/rails_5_no_sprockets.gemfile
   - gemfiles/rails_5.1_sprockets_4.gemfile
+  - gemfiles/rails_5.2_sprockets_4.gemfile
 
 matrix:
   fast_finish: true
