diff --git a/.zuul.yaml b/.zuul.yaml
index f3848fb..c11af82 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -3,7 +3,7 @@
       - openstack-specs-jobs
     check:
       jobs:
-        - openstack-tox-py27
+        - openstack-tox-py36
     gate:
       jobs:
-        - openstack-tox-py27
+        - openstack-tox-py36
diff --git a/requirements.txt b/requirements.txt
index c5b4edf..2131709 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,5 +1,4 @@
 openstackdocstheme>=1.11.0
-sphinx!=1.6.6,!=1.6.7,<2.0.0;python_version=='2.7'  # BSD
 sphinx!=1.6.6,!=1.6.7;python_version>='3.4'  # BSD
 testrepository>=0.0.18
 testtools>=0.9.34
diff --git a/tests/test_titles.py b/tests/test_titles.py
index 95eee8a..ba25617 100644
--- a/tests/test_titles.py
+++ b/tests/test_titles.py
@@ -111,7 +111,7 @@ class TestTitles(testtools.TestCase):
         # Get the current release directory - since we're moving up
         # alphabetically, grab the highest name in the spec directory
         generator = os.walk('specs')
-        dirname, subdirs, files = generator.next()
+        dirname, subdirs, files = next(generator)
         current_release = max(subdirs)
         found = False
         for dirname, subdirs, files in generator:
diff --git a/tox.ini b/tox.ini
index a9df6eb..f8b9999 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,9 +1,10 @@
 [tox]
 minversion = 1.6
-envlist = docs,py27
+envlist = docs,py3
 skipsdist = True
 
 [testenv]
+basepython = python3
 usedevelop = True
 install_command = pip install -U {opts} {packages}
 setenv = VIRTUAL_ENV={envdir}
@@ -11,11 +12,9 @@ deps = -r{toxinidir}/requirements.txt
 commands = python setup.py testr --slowest --testr-args='{posargs}'
 
 [testenv:venv]
-basepython = python3
 commands = {posargs}
 
 [testenv:docs]
-basepython = python3
 commands = python setup.py build_sphinx
 
 [testenv:spelling]
@@ -23,4 +22,4 @@ deps =
    -r{toxinidir}/requirements.txt
    sphinxcontrib-spelling
    PyEnchant
-commands = sphinx-build -b spelling doc/source doc/build/spelling
\ No newline at end of file
+commands = sphinx-build -b spelling doc/source doc/build/spelling