diff --git a/.travis.yml b/.travis.yml
index f0764f1..b43ca9c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,6 +19,6 @@ matrix:
       before_install: pip install cython
       script: python setup.py build_ext
     - language: python
-      python: "3.6"
+      python: "3.9"
       before_install: pip install cython
       script: python setup.py build_ext