diff --git a/.travis.yml b/.travis.yml
index 36d32f0..f4b87bf 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,8 @@
 language: python
+python:
+  - "3.6"
+  - "3.7"
+  - "3.8"
 install:
   - python --version
   - pip install --upgrade pip setuptools wheel