diff --git a/.travis.yml b/.travis.yml
index 35d3163e..75c40d6c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -12,6 +12,7 @@ python:
   - 3.6
   - 3.7
   - 3.8
+  - 3.9
 
 install:
   - sudo apt-get install -y bc