diff --git a/.zuul.yaml b/.zuul.yaml
index 9122fbac..6d0a53f6 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -8,8 +8,6 @@
       - release-notes-jobs-python3
     check:
       jobs:
-        - tooz-tox-py38-etcd
-        - tooz-tox-py310-etcd
         - tooz-tox-py38-etcd3gw
         - tooz-tox-py310-etcd3gw
         - tooz-tox-py38-zookeeper
@@ -28,8 +26,6 @@
         - tooz-tox-py310-consul
     gate:
       jobs:
-        - tooz-tox-py38-etcd
-        - tooz-tox-py310-etcd
         - tooz-tox-py38-etcd3gw
         - tooz-tox-py310-etcd3gw
         - tooz-tox-py38-zookeeper
@@ -55,14 +51,6 @@
     vars:
       tox_envlist: py38-consul
 
-- job:
-    name: tooz-tox-py38-etcd
-    parent: openstack-tox-py38
-    description: |
-      Run tests using ``py38-etcd`` environment.
-    vars:
-      tox_envlist: py38-etcd
-
 - job:
     name: tooz-tox-py38-etcd3gw
     parent: openstack-tox-py38
@@ -131,14 +119,6 @@
     vars:
       tox_envlist: py310-consul
 
-- job:
-    name: tooz-tox-py310-etcd
-    parent: openstack-tox-py310
-    description: |
-      Run tests using ``py310-etcd`` environment.
-    vars:
-      tox_envlist: py310-etcd
-
 - job:
     name: tooz-tox-py310-etcd3gw
     parent: openstack-tox-py310
diff --git a/releasenotes/notes/etcd-3.4-eee8300c942a1263.yaml b/releasenotes/notes/etcd-3.4-eee8300c942a1263.yaml
new file mode 100644
index 00000000..8c9044ec
--- /dev/null
+++ b/releasenotes/notes/etcd-3.4-eee8300c942a1263.yaml
@@ -0,0 +1,7 @@
+---
+upgrade:
+  - |
+    This version of tooz defaults to the `v3` endpoint for the `etcd3gw`
+    backend. The previous behavior can be restored by appending
+    `?api_version=v3alpha` to the coordination URL. The `v3alpha` and
+    `v3beta` endpoints have been deprecated by upstream etcd.
diff --git a/setup-etcd-env.sh b/setup-etcd-env.sh
index cfdbaac5..919aee12 100755
--- a/setup-etcd-env.sh
+++ b/setup-etcd-env.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 set -eux
 if [ -z "$(which etcd)" ]; then
-    ETCD_VERSION=3.1.3
+    ETCD_VERSION=3.3.27
     case `uname -s` in
         Darwin)
             OS=darwin
diff --git a/tooz/drivers/etcd3gw.py b/tooz/drivers/etcd3gw.py
index 08f348d0..5d058dee 100644
--- a/tooz/drivers/etcd3gw.py
+++ b/tooz/drivers/etcd3gw.py
@@ -181,7 +181,7 @@ class Etcd3Driver(coordination.CoordinationDriverCachedRunWatchers,
     ==================  =======
     Name                Default
     ==================  =======
-    api_version         v3alpha
+    api_version         v3
     ca_cert             None
     cert_key            None
     cert_cert           None
@@ -201,7 +201,7 @@ class Etcd3Driver(coordination.CoordinationDriverCachedRunWatchers,
     DEFAULT_PORT = 2379
 
     #: Default api version if none provided
-    DEFAULT_API_VERSION = "v3alpha"
+    DEFAULT_API_VERSION = "v3"
 
     GROUP_PREFIX = b"tooz/groups/"
 
diff --git a/tooz/tests/__init__.py b/tooz/tests/__init__.py
index b7acfa14..f9050097 100644
--- a/tooz/tests/__init__.py
+++ b/tooz/tests/__init__.py
@@ -58,7 +58,10 @@ class TestWithCoordinator(testcase.TestCase, metaclass=SkipNotImplementedMeta):
         if os.getenv("TOOZ_TEST_ETCD3"):
             self.url = self.url.replace("etcd://", "etcd3://")
         if os.getenv("TOOZ_TEST_ETCD3GW"):
-            self.url = self.url.replace("etcd://", "etcd3+http://")
+            # TODO(jan.gutter): When pifpaf supports etcd 3.4 we should use the
+            # defaults
+            self.url = self.url.replace("etcd://", "etcd3+http://") + \
+                "?api_version=v3beta"
         self.useFixture(fixtures.NestedTempfile())
         self.group_id = get_random_uuid()
         self.member_id = get_random_uuid()
diff --git a/tooz/tests/drivers/test_etcd3gw.py b/tooz/tests/drivers/test_etcd3gw.py
index 3b8a09cf..ea417895 100644
--- a/tooz/tests/drivers/test_etcd3gw.py
+++ b/tooz/tests/drivers/test_etcd3gw.py
@@ -39,14 +39,14 @@ class TestEtcd3Gw(testcase.TestCase):
                'timeout': etcd3gw_driver.Etcd3Driver.DEFAULT_TIMEOUT},
               {'coord_url': ('etcd3+https://my_host:666?ca_cert=/my/ca_cert&'
                              'cert_key=/my/cert_key&cert_cert=/my/cert_cert&'
-                             'timeout=42&api_version=v3'),
+                             'timeout=42&api_version=v3alpha'),
                'protocol': 'https',
                'host': 'my_host',
                'port': 666,
                'ca_cert': '/my/ca_cert',
                'cert_key': '/my/cert_key',
                'cert_cert': '/my/cert_cert',
-               'api_path': '/v3/',
+               'api_path': '/v3alpha/',
                'timeout': 42})
     @ddt.unpack
     @mock.patch('etcd3gw.client')