diff --git a/tox.ini b/tox.ini
index fe88343e..53c14551 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,6 +9,7 @@ passenv=HTTP_PROXY HTTPS_PROXY http_proxy https_proxy NO_PROXY no_proxy
 
 # Please use `make docs` instead
 [testenv:docs]
+basepython=python3
 whitelist_externals=
     rm
     cp
@@ -45,6 +46,7 @@ commands=
   tox -c {toxinidir}/src/bin/shipyard_client/tox.ini -e py36
 
 [testenv:pep8]
+basepython=python3
 whitelist_externals=
     tox
 commands=