diff --git a/test_set/tox.ini b/test_set/tox.ini
index b68781e..dee7131 100644
--- a/test_set/tox.ini
+++ b/test_set/tox.ini
@@ -10,7 +10,7 @@
 commands = {posargs:pytest --version}
 
 [testenv:cvp-sanity]
-basepython = python3.5
+basepython = python3.8
 deps = -rcvp-sanity/requirements.txt
 changedir = cvp-sanity