.travis.yml in dropcaster-1.1.0 vs .travis.yml in dropcaster-1.2.0

@@ -1,14 +1,10 @@
 language: ruby
 
 rvm:
-- 2.5.7
-- 2.6.5
-- 2.7.0-rc2
-
-matrix:
-  allow_failures:
-  - rvm: 2.7.0-rc2
+- 2.6.7
+- 2.7.3
+- 3.0.1
 
 before_install:
 # https://github.com/travis-ci/travis-ci/issues/8978#issuecomment-377680126
 - gem install bundler