.travis.yml in infopark_component_cache-4.0.1 vs .travis.yml in infopark_component_cache-4.1.0

@@ -2,13 +2,13 @@
 os: linux
 dist: xenial
 rvm:
   - 2.6.6
   - 2.5.3
-  - 2.4.5
 gemfile:
   - Gemfile
   - Gemfile.rails51
+  - Gemfile.rails50
 bundler_args: --without production
 cache: bundler
 env:
   jobs:
     - TASK='bundle exec rake spec'