diff --git a/docs/API.md b/docs/API.md
index eceb382..73b74e2 100644
--- a/docs/API.md
+++ b/docs/API.md
@@ -32,7 +32,7 @@ trusting an address supplied by the game client.
   "port": 7777,
   "current_players": 0,
   "max_players": 8,
-  "game_version": "0.17.1-alpha",
+  "game_version": "0.18.0-alpha",
   "protocol_version": 10
 }
 ```
diff --git a/netfishing_discovery/__init__.py b/netfishing_discovery/__init__.py
index 9abd5c4..6469099 100644
--- a/netfishing_discovery/__init__.py
+++ b/netfishing_discovery/__init__.py
@@ -1,3 +1,3 @@
 """NETfishing discovery service."""
 
-__version__ = "0.17.1-alpha"
+__version__ = "0.18.0-alpha"
diff --git a/pyproject.toml b/pyproject.toml
index 27807e4..cf8f42e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "netfishing-discovery-server"
-version = "0.17.1-alpha"
+version = "0.18.0-alpha"
 description = "Ephemeral public-room directory for NETfishing"
 requires-python = ">=3.11"
 dependencies = []
diff --git a/tests/test_http_api.py b/tests/test_http_api.py
index 5043e5d..b3c763b 100644
--- a/tests/test_http_api.py
+++ b/tests/test_http_api.py
@@ -20,7 +20,7 @@ VALID_ROOM = {
     "port": 7777,
     "current_players": 1,
     "max_players": 8,
-    "game_version": "0.17.1-alpha",
+    "game_version": "0.18.0-alpha",
     "protocol_version": 10,
 }
 
@@ -102,7 +102,7 @@ class DiscoveryHTTPTests(unittest.TestCase):
         assert updated is not None
         self.assertEqual(updated["error"]["code"], "game_version_mismatch")
         self.assertEqual(
-            updated["error"]["required_game_version"], "0.17.1-alpha"
+            updated["error"]["required_game_version"], "0.18.0-alpha"
         )
 
         status, updated = self.request(
@@ -135,7 +135,7 @@ class DiscoveryHTTPTests(unittest.TestCase):
         error = body["error"]
         assert isinstance(error, dict)
         self.assertEqual(error["code"], "game_version_mismatch")
-        self.assertEqual(error["required_game_version"], "0.17.1-alpha")
+        self.assertEqual(error["required_game_version"], "0.18.0-alpha")
         self.assertIn("will not be listed", str(error["message"]))
 
     def test_empty_dedicated_room_can_be_listed(self) -> None:
@@ -201,7 +201,7 @@ class DiscoveryHTTPTests(unittest.TestCase):
         self.assertEqual(status, 200)
         assert body is not None
         self.assertEqual(body["status"], "ok")
-        self.assertEqual(body["version"], "0.17.1-alpha")
+        self.assertEqual(body["version"], "0.18.0-alpha")
         self.assertEqual(body["build_revision"], "test-build")
 
     def test_live_friend_presence_and_invitation_endpoints(self) -> None:
diff --git a/tests/test_registry.py b/tests/test_registry.py
index 19b0331..eccb364 100644
--- a/tests/test_registry.py
+++ b/tests/test_registry.py
@@ -16,7 +16,7 @@ VALID_ROOM = {
     "port": 7777,
     "current_players": 1,
     "max_players": 8,
-    "game_version": "0.17.1-alpha",
+    "game_version": "0.18.0-alpha",
     "protocol_version": 10,
 }
 
diff --git a/tests/test_social_registry.py b/tests/test_social_registry.py
index 59d316f..5cf68fc 100644
--- a/tests/test_social_registry.py
+++ b/tests/test_social_registry.py
@@ -12,7 +12,7 @@ from netfishing_discovery.social_registry import (
 )
 
 
-GAME_VERSION = "0.17.1-alpha"
+GAME_VERSION = "0.18.0-alpha"
 PROTOCOL_VERSION = 10
 VALID_ROOM = {
     "room_name": "Pond Friends",