diff --git a/etcd3gw/client.py b/etcd3gw/client.py
index ce14923..694bcb0 100644
--- a/etcd3gw/client.py
+++ b/etcd3gw/client.py
@@ -42,7 +42,7 @@ _EXCEPTIONS_BY_CODE = {
 class Etcd3Client(object):
     def __init__(self, host='localhost', port=2379, protocol="http",
                  ca_cert=None, cert_key=None, cert_cert=None, timeout=None,
-                 api_path='/v3beta/'):
+                 api_path='/v3alpha/'):
         """Construct an client to talk to etcd3's grpc-gateway's /v3 HTTP API
 
         :param host:
diff --git a/etcd3gw/tests/test_client.py b/etcd3gw/tests/test_client.py
index 955aab2..9b0a145 100644
--- a/etcd3gw/tests/test_client.py
+++ b/etcd3gw/tests/test_client.py
@@ -22,17 +22,17 @@ class TestEtcd3Gateway(base.TestCase):
 
     def test_client_default(self):
         client = Etcd3Client()
-        self.assertEqual("http://localhost:2379/v3beta/lease/grant",
+        self.assertEqual("http://localhost:2379/v3alpha/lease/grant",
                          client.get_url("/lease/grant"))
 
     def test_client_ipv4(self):
         client = Etcd3Client(host="127.0.0.1")
-        self.assertEqual("http://127.0.0.1:2379/v3beta/lease/grant",
+        self.assertEqual("http://127.0.0.1:2379/v3alpha/lease/grant",
                          client.get_url("/lease/grant"))
 
     def test_client_ipv6(self):
         client = Etcd3Client(host="::1")
-        self.assertEqual("http://[::1]:2379/v3beta/lease/grant",
+        self.assertEqual("http://[::1]:2379/v3alpha/lease/grant",
                          client.get_url("/lease/grant"))
 
     def test_client_bad_request(self):