diff --git a/.travis.yml b/.travis.yml
index 03a7eae..8061188 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -3,12 +3,12 @@ language: ruby
 cache: bundler
 script: bundle exec rspec
 rvm:
-  - 2.6.3
+  - 2.6.5
+  - 2.7.0
 env:
   matrix:
-    - ACTION_MAILER_VERSION=4
     - ACTION_MAILER_VERSION=5
-    - ACTION_MAILER_VERSION=6.0.0.rc2
+    - ACTION_MAILER_VERSION=6
     - ACTION_MAILER_VERSION=master
 matrix:
   fast_finish: true