diff --git a/tox.ini b/tox.ini
index 5bd152e4..644a0f6e 100644
--- a/tox.ini
+++ b/tox.ini
@@ -4,7 +4,6 @@ envlist = checkbuild
 skipsdist = True
 
 [testenv]
-basepython = python2
 setenv = VIRTUAL_ENV={envdir}
 install_command = pip install -U {opts} {packages}
 deps = -r{toxinidir}/test-requirements.txt
@@ -15,6 +14,7 @@ whitelist_externals =
   rsync
 
 [testenv:venv]
+basepython = python3
 commands = {posargs}
 
 [doc8]