.travis.yml in table_sync-2.2.0 vs .travis.yml in table_sync-2.3.0

@@ -1,14 +1,14 @@
 language: ruby
 
+rvm: 
+  - 2.5
+  - 2.6
+  - 2.7
+  - ruby-head
+
 matrix:
   fast_finish: true
-  include:
-    - rvm: 2.3
-    - rvm: 2.4
-    - rvm: 2.5
-    - rvm: 2.6
-    - rvm: ruby-head
   allow_failures:
     - rvm: ruby-head
 
 sudo: false