.travis.yml in acumatica-0.4.0 vs .travis.yml in acumatica-0.5.0

@@ -1,10 +1,9 @@
 language: ruby
 
 rvm:
-  - 2.4
-  - 2.5
   - 2.6
+  - 2.7
 
 env:
   - ACUMATICA_URL=https://acumatica.example.org
 
 notifications: