diff --git a/.travis.yml b/.travis.yml
index b731d98..20cee45 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,8 +4,8 @@
 dart:
   # Keep this value aligned with min SDK value in pubspec.yaml and FROM line of Dockerfile
   - "2.7.2"
-  - "2.8.0-20.11.beta"
-  - "2.9.0-5.0.dev"
+  - beta
+  - dev
 
 # Speed up builds by using containerization. Disable this if you need to use
 # sudo in your scripts.