diff --git a/tox.ini b/tox.ini
index 8e75f0d..4623d64 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,11 +1,12 @@
 [tox]
-minversion = 1.6
+minversion = 3.1.1
 skipsdist = True
 envlist = bashate
+ignore_basepython_conflict = true
 
 [testenv]
+basepython = python3
 usedevelop = False
-install_command = pip install {opts} {packages}
 
 [testenv:bashate]
 deps = bashate