diff --git a/.zuul.yaml b/.zuul.yaml
index 7056865..f10d730 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -2,7 +2,6 @@
     templates:
       - openstack-cover-jobs
       - openstack-lower-constraints-jobs
-      - openstack-python-jobs
       - openstack-python3-ussuri-jobs
       - publish-openstack-docs-pti
       - check-requirements
diff --git a/releasenotes/notes/drop-py-2-7-1c41855c5edc5ba3.yaml b/releasenotes/notes/drop-py-2-7-1c41855c5edc5ba3.yaml
new file mode 100644
index 0000000..756a46c
--- /dev/null
+++ b/releasenotes/notes/drop-py-2-7-1c41855c5edc5ba3.yaml
@@ -0,0 +1,6 @@
+---
+upgrade:
+  - |
+    Python 2.7 support has been dropped. Last release of python-monascaclient
+    to support python 2.7 is OpenStack Train. The minimum version of Python now
+    supported is Python 3.6.
diff --git a/test-requirements.txt b/test-requirements.txt
index 69e0a9e..0b214cc 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -13,7 +13,6 @@ testtools>=2.2.0 # MIT
 
 # documentation
 doc8>=0.6.0 # Apache-2.0
-sphinx!=1.6.6,!=1.6.7,>=1.6.5,<2.0.0;python_version=='2.7' # BSD
 sphinx!=1.6.6,!=1.6.7,!=2.1.0,>=1.6.5;python_version>='3.4' # BSD
 reno>=2.5.0 # Apache-2.0
 openstackdocstheme>=1.18.1 # Apache-2.0
diff --git a/tox.ini b/tox.ini
index 6d920c9..b9ca7b3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,9 +1,11 @@
 [tox]
-envlist = py27,py37,pypy,cover,pep8
-minversion = 2.5
+envlist = py37,pypy,cover,pep8
+minversion = 3.1.1
 skipsdist = True
+ignore_basepython_conflict = True
 
 [testenv]
+basepython = python3
 setenv =
     VIRTUAL_ENV={envdir}
     OS_TEST_PATH=monascaclient/tests
@@ -24,7 +26,6 @@ commands =
   stestr run {posargs}
 
 [testenv:cover]
-basepython = python3
 setenv =
     PYTHON=coverage run --source monascaclient --parallel-mode
 commands =
@@ -36,11 +37,9 @@ commands =
     coverage report
 
 [testenv:debug]
-basepython = python3
 commands = oslo_debug_helper -t {env:OS_TEST_PATH} {posargs}
 
 [testenv:pep8]
-basepython = python3
 skip_install = True
 usedevelop = False
 commands =
@@ -49,33 +48,28 @@ commands =
   {[testenv:checkniceness]commands}
 
 [testenv:flake8]
-basepython = python3
 skip_install = True
 usedevelop = False
 commands = flake8 monascaclient
 
 [testenv:bandit]
-basepython = python3
 skip_install = True
 usedevelop = False
 commands = bandit -r monascaclient -n5 -x {env:OS_TEST_PATH}
 
 [testenv:docs]
-basepython = python3
 description = Builds full monascaclient documentation
 commands =
   {[testenv:devdocs]commands}
   {[testenv:releasenotes]commands}
 
 [testenv:devdocs]
-basepython = python3
 description = Builds developer documentation
 commands =
   rm -rf {toxinidir}/doc/build {toxinidir}/doc/source/contributor/api
   python setup.py build_sphinx
 
 [testenv:releasenotes]
-basepython = python3
 description = Called from CI script to test and publish the Release Notes
 commands =
   rm -rf releasenotes/build
@@ -83,14 +77,12 @@ commands =
     {toxinidir}/releasenotes/source {toxinidir}/releasenotes/build/html
 
 [testenv:checkniceness]
-basepython = python3
 description = Validates (pep-like) documenation
 commands =
   doc8 --file-encoding utf-8 {toxinidir}/doc
   doc8 --file-encoding utf-8 {toxinidir}/releasenotes
 
 [testenv:venv]
-basepython = python3
 commands = {posargs}
 
 [hacking]
@@ -104,7 +96,6 @@ builtins = _
 exclude=.venv,.git,.tox,dist,client_api_example.py,*lib/python*,*egg,build
 
 [testenv:lower-constraints]
-basepython = python3
 deps =
   -c{toxinidir}/lower-constraints.txt
   -r{toxinidir}/test-requirements.txt