diff --git a/.travis.yml b/.travis.yml
index ac5ddd7..551846e 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -7,8 +7,9 @@ python:
   - "3.7-dev"  # 3.7 development branch
   - "3.8"
   - "3.8-dev"  # 3.8 development branch
-  # - "3.9"
+  - "3.9"
   - "3.9-dev"  # 3.9 development branch
+  - "nightly"
 
 # command to install dependencies
 install: