diff --git a/releasenotes/notes/drop-py-2-7-1be17025c498d4bd.yaml b/releasenotes/notes/drop-py-2-7-1be17025c498d4bd.yaml
new file mode 100644
index 0000000..460d3af
--- /dev/null
+++ b/releasenotes/notes/drop-py-2-7-1be17025c498d4bd.yaml
@@ -0,0 +1,6 @@
+---
+upgrade:
+  - |
+    Python 2.7 support has been dropped. Last release of vitrage-tempest-plugin
+    to support py2.7 is OpenStack Train. The minimum version of Python now
+    supported by vitrage-tempest-plugin is Python 3.6.
diff --git a/requirements.txt b/requirements.txt
index 873c683..d8ff140 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -25,5 +25,4 @@ oslo.utils>=3.36.0 # Apache-2.0
 testtools>=2.2.0 # MIT
 oslotest>=3.2.0 # Apache-2.0
 tempest>=17.1.0 # Apache-2.0
-networkx<2.3,>=2.0;python_version<'3.0'  # BSD
 networkx>=2.3;python_version>='3.4'  # BSD
diff --git a/setup.cfg b/setup.cfg
index ad28cc2..b03bf5f 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -13,8 +13,6 @@ classifier =
     License :: OSI Approved :: Apache Software License
     Operating System :: POSIX :: Linux
     Programming Language :: Python
-    Programming Language :: Python :: 2
-    Programming Language :: Python :: 2.7
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
diff --git a/tox.ini b/tox.ini
index 63e0d3e..a80c00f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -17,12 +17,15 @@ deps = -r{toxinidir}/test-requirements.txt
 commands = stestr run {posargs}
 
 [testenv:pep8]
+basepython = python3
 commands = flake8 {posargs}
 
 [testenv:venv]
+basepython = python3
 commands = {posargs}
 
 [testenv:cover]
+basepython = python3
 setenv =
     VIRTUAL_ENV={envdir}
     PYTHON=coverage run --source virtage_tempest_plugin --parallel-mode
@@ -33,13 +36,16 @@ commands =
     coverage xml -o cover/coverage.xml
 
 [testenv:docs]
+basepython = python3
 commands = python setup.py build_sphinx
 
 [testenv:releasenotes]
+basepython = python3
 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]