diff --git a/.zuul.yaml b/.zuul.yaml
index 594f96a4..c0149d58 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -9,7 +9,7 @@
         - openstack-tox-linters
         - openstack-tox-pep8
         - openstack-tox-py27
-        - openstack-tox-py35
+        - openstack-tox-py37
         - stx-updates-pylint
         - stx-devstack-update
     gate:
@@ -19,7 +19,7 @@
         - openstack-tox-linters
         - openstack-tox-pep8
         - openstack-tox-py27
-        - openstack-tox-py35
+        - openstack-tox-py37
         - stx-updates-pylint
     post:
       jobs:
diff --git a/tox.ini b/tox.ini
index bef44614..00931d34 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,7 +9,7 @@
 # test suite on all supported python versions. To use it, "pip install tox"
 # and then run "tox" from this directory.
 [tox]
-envlist = linters,pep8,py27,py35,pylint
+envlist = linters,pep8,py27,py37,pylint
 minversion = 2.3
 skipsdist = True
 
@@ -103,7 +103,7 @@ recreate = True
 commands = {[testenv]commands}
            tox -c tsconfig/tsconfig  -e py27
 
-[testenv:py35]
+[testenv:py37]
 basepython = python3
 deps = {[testenv]deps}
 whitelist_externals = cp
@@ -111,7 +111,7 @@ whitelist_externals = cp
                       tox
 recreate = True
 commands = {[testenv]commands}
-           tox -c tsconfig/tsconfig  -e py35
+           tox -c tsconfig/tsconfig  -e py37
 
 [testenv:pylint]
 deps = {[testenv]deps}
diff --git a/tsconfig/tsconfig/tox.ini b/tsconfig/tsconfig/tox.ini
index abb70a06..0bd5ec6d 100644
--- a/tsconfig/tsconfig/tox.ini
+++ b/tsconfig/tsconfig/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py27,py35,cover
+envlist = py27,py37,cover
 minversion = 2.3.2
 
 [testenv]