update travis
diff --git a/pkgs/markdown/.travis.yml b/pkgs/markdown/.travis.yml
index 5ab0e56..4d2280d 100644
--- a/pkgs/markdown/.travis.yml
+++ b/pkgs/markdown/.travis.yml
@@ -3,7 +3,8 @@
 dart:
   - stable
   - dev
-  - 1.21.0
+  - 1.22.0
+  - 1.21.1
   - 1.20.1
   - 1.19.1
 script: tool/travis.sh