diff --git a/maubot/__init__.py b/maubot/__init__.py
index 9ca0322..71755b9 100644
--- a/maubot/__init__.py
+++ b/maubot/__init__.py
@@ -1,3 +1,4 @@
 from .plugin_base import Plugin
 from .plugin_server import PluginWebApp
 from .matrix import MaubotMatrixClient as Client, MaubotMessageEvent as MessageEvent
+from .__meta__ import __version__
diff --git a/maubot/cli/commands/auth.py b/maubot/cli/commands/auth.py
index 66c8b6e..390363f 100644
--- a/maubot/cli/commands/auth.py
+++ b/maubot/cli/commands/auth.py
@@ -20,7 +20,6 @@ from yarl import URL
 import aiohttp
 import click
 
-from ..config import get_token
 from ..cliq import cliq
 
 history_count: int = 10
diff --git a/maubot/client.py b/maubot/client.py
index 7d0a6de..074e85e 100644
--- a/maubot/client.py
+++ b/maubot/client.py
@@ -110,6 +110,19 @@ class Client:
         self.crypto = OlmMachine(self.client, self.crypto_store, self.global_state_store)
         self.client.crypto = self.crypto
 
+    def _remove_crypto_event_handlers(self) -> None:
+        if not self.crypto:
+            return
+        handlers = [
+            (InternalEventType.DEVICE_OTK_COUNT, self.crypto.handle_otk_count),
+            (InternalEventType.DEVICE_LISTS, self.crypto.handle_device_lists),
+            (EventType.TO_DEVICE_ENCRYPTED, self.crypto.handle_to_device_event),
+            (EventType.ROOM_KEY_REQUEST, self.crypto.handle_room_key_request),
+            (EventType.ROOM_MEMBER, self.crypto.handle_member_event),
+        ]
+        for event_type, func in handlers:
+            self.client.remove_event_handler(event_type, func)
+
     def _set_sync_ok(self, ok: bool) -> Callable[[Dict[str, Any]], Awaitable[None]]:
         async def handler(data: Dict[str, Any]) -> None:
             self.sync_ok = ok
@@ -156,7 +169,7 @@ class Client:
                 self.db_instance.enabled = False
             else:
                 self.log.warning(f"Failed to get /account/whoami, "
-                                   f"retrying in {(try_n + 1) * 10}s: {e}")
+                                 f"retrying in {(try_n + 1) * 10}s: {e}")
                 _ = asyncio.ensure_future(self.start(try_n + 1), loop=self.loop)
             return
         if whoami.user_id != self.id:
@@ -316,6 +329,9 @@ class Client:
             raise ValueError(f"Device ID mismatch: {whoami.device_id}")
         new_client.sync_store = SyncStoreProxy(self.db_instance)
         self.stop_sync()
+        self._remove_crypto_event_handlers()
+        new_client.event_handlers = self.client.event_handlers
+        new_client.global_event_handlers = self.client.global_event_handlers
         self.client = new_client
         self.db_instance.homeserver = homeserver
         self.db_instance.access_token = access_token
diff --git a/requirements.txt b/requirements.txt
index bc888b7..27126f8 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-mautrix>=0.11,<0.12
+mautrix>=0.11,<0.13
 aiohttp>=3,<4
 yarl>=1,<2
 SQLAlchemy>=1,<1.4