diff --git a/tox.ini b/tox.ini
index 55829e0..ff41a20 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 minversion = 2.0
-envlist = py34,py27,pypy,pep8
+envlist = py36,py35,py27,pypy,pep8
 skipsdist = True
 
 [testenv]
@@ -23,17 +23,6 @@
 basepython = python3
 commands = {posargs}
 
-[testenv:cover]
-basepython = python3
-setenv =
-    VIRTUAL_ENV={envdir}
-    PYTHON=coverage run --source telemetry_tempest_plugin --parallel-mode
-commands =
-    stestr run {posargs}
-    coverage combine
-    coverage html -d cover
-    coverage xml -o cover/coverage.xml
-
 [testenv:docs]
 basepython = python3
 commands = python setup.py build_sphinx
@@ -43,10 +32,6 @@
 commands =
   sphinx-build -a -E -W -d releasenotes/build/doctrees -b html releasenotes/source releasenotes/build/html
 
-[testenv:debug]
-basepython = python3
-commands = oslo_debug_helper {posargs}
-
 [flake8]
 # E123, E125 skipped as they are invalid PEP-8.