diff --git a/tox.ini b/tox.ini
index 8c8b92c1..31507c06 100644
--- a/tox.ini
+++ b/tox.ini
@@ -20,12 +20,14 @@ commands = {posargs}
 passenv = OS_*
 
 [testenv:cover]
+basepython = python3
 setenv =
     DISCOVER_DIRECTORY=sahara_tests
     PACKAGE_NAME=sahara_tests
 commands = {toxinidir}/tools/cover.sh {posargs}
 
 [testenv:docs]
+basepython = python3
 deps =
     -r{toxinidir}/doc/requirements.txt
 commands =
@@ -38,10 +40,12 @@ whitelist_externals =
 downloadcache = ~/cache/pip
 
 [testenv:pylint]
+basepython = python3
 setenv = VIRTUAL_ENV={envdir}
 commands = bash tools/lintstack.sh
 
 [testenv:pep8]
+basepython = python3
 deps =
     -r{toxinidir}/requirements.txt
     -r{toxinidir}/doc/requirements.txt
@@ -57,6 +61,7 @@ commands =
 whitelist_externals = bash
 
 [testenv:releasenotes]
+basepython = python3
 deps =
     -r{toxinidir}/doc/requirements.txt
 commands =