README.md in can_has_state-0.5.1 vs README.md in can_has_state-0.5.2

@@ -251,6 +251,6 @@
 
 
 
 ## Compatibility ##
 
-Tested with Ruby 2.3-2.4 and ActiveSupport and ActiveModel 4.2-5.1.
+Tested with Ruby 2.3-2.6+ and ActiveSupport and ActiveModel 5.2-6.1+.