diff --git a/tox.ini b/tox.ini
index 1b156db6..34bce18a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -48,27 +48,33 @@ commands =
   coverage report
 
 [testenv:debug]
+basepython = python3
 commands =
   {[testenv]commands}
   oslo_debug_helper -t {env:OS_TEST_PATH} {posargs}
 
 [testenv:bandit]
+basepython = python3
 # B101(assert_ussed) - Validation uses asserts because of performance reasons
 # monasca_common/kafka_lib is a clone of kafka-python and will be deleted in the future
 commands = bandit -r monasca_common -n5 -s B101 -x monasca_common/tests -x monasca_common/kafka_lib
 
 [testenv:flake8]
+basepython = python3
 commands = flake8 monasca_common
 
 [testenv:pep8]
+basepython = python3
 commands =
   {[testenv:flake8]commands}
   {[testenv:bandit]commands}
 
 [testenv:venv]
+basepython = python3
 commands = {posargs}
 
 [testenv:bindep]
+basepython = python3
 deps = bindep
 commands = bindep test