.travis.yml in active_admin_sidebar-1.2.0 vs .travis.yml in active_admin_sidebar-2.0.0

@@ -13,9 +13,11 @@
 
 env:
   matrix:
     - RAILS=5.1.6 AA=1.1.0
     - RAILS=5.2.1 AA=1.4.0
+    - RAILS=5.2.2 AA=2.8.0
+    - RAILS=6.0.0 AA=2.8.0
 
 rvm:
-  - 2.4
+  - 2.5
   - 2.6