1 files changed, 2 insertions, 1 deletions

diff --git a/tox.ini b/tox.ini
index 8d138ea..9013c37 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,7 @@
 # content of: tox.ini , put in same dir as setup.py
 [tox]
-envlist = py36
+envlist = py36,py37,py38,py39
+skip_missing_interpreters = true
 
 [testenv]
 deps=