diff --git a/coreos-config/roles/compose_project/templates/matrix/docker-compose.yaml b/coreos-config/roles/compose_project/templates/matrix/docker-compose.yaml
index 6958ef2..05e8b24 100644
--- a/coreos-config/roles/compose_project/templates/matrix/docker-compose.yaml
+++ b/coreos-config/roles/compose_project/templates/matrix/docker-compose.yaml
@@ -4,7 +4,7 @@ version: '3.9'
 services:
 
   synapse:
-    image: matrixdotorg/synapse:latest
+    image: registry.tobiasmanske.de/matrixdotorg/synapse:latest
     user: "1000:1000"
     # Since synapse does not retry to connect to the database, restart upon
     # failure
@@ -24,7 +24,6 @@ services:
       - ./synapse-config:/config:ro,Z
       - ./mautrix-telegram/registration.yaml:/data/reg-mautrix-tg.yaml:ro,Z
       - ./mautrix-slack/registration.yaml:/data/reg-mautrix-slack.yaml:ro,Z
-      - ./shared_secret_authenticator.py:/usr/local/lib/python3.11/site-packages/shared_secret_authenticator.py:ro,Z
     depends_on:
       - db
       - redis
diff --git a/coreos-config/roles/compose_project/templates/matrix/shared_secret_authenticator.py b/coreos-config/roles/compose_project/templates/matrix/shared_secret_authenticator.py
deleted file mode 100644
index c24d8dd..0000000
--- a/coreos-config/roles/compose_project/templates/matrix/shared_secret_authenticator.py
+++ /dev/null
@@ -1,123 +0,0 @@
-# -*- coding: utf-8 -*-
-#
-# Shared Secret Authenticator module for Matrix Synapse
-# Copyright (C) 2018 Slavi Pantaleev
-#
-# https://devture.com/
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Affero General Public License as
-# published by the Free Software Foundation, either version 3 of the
-# License, or (at your option) any later version.
-
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU Affero General Public License for more details.
-
-# You should have received a copy of the GNU Affero General Public License
-# along with this program.  If not, see <https://www.gnu.org/licenses/>.
-#
-from typing import Awaitable, Callable, Optional, Tuple
-
-import hashlib
-import hmac
-import logging
-
-import synapse
-from synapse import module_api
-
-logger = logging.getLogger(__name__)
-
-class SharedSecretAuthProvider:
-    def __init__(self, config: dict, api: module_api):
-        for k in ('shared_secret',):
-            if k not in config:
-                raise KeyError('Required `{0}` configuration key not found'.format(k))
-
-        m_login_password_support_enabled = bool(config['m_login_password_support_enabled']) if 'm_login_password_support_enabled' in config else False
-        com_devture_shared_secret_auth_support_enabled = bool(config['com_devture_shared_secret_auth_support_enabled']) if 'com_devture_shared_secret_auth_support_enabled' in config else True
-
-        self.api = api
-        self.shared_secret = config['shared_secret']
-
-        auth_checkers: Optional[Dict[Tuple[str, Tuple], CHECK_AUTH_CALLBACK]] = {}
-        if com_devture_shared_secret_auth_support_enabled:
-            auth_checkers[("com.devture.shared_secret_auth", ("token",))] = self.check_com_devture_shared_secret_auth
-        if m_login_password_support_enabled:
-            auth_checkers[("m.login.password", ("password",))] = self.check_m_login_password
-
-        enabled_login_types = [k[0] for k in auth_checkers]
-
-        if len(enabled_login_types) == 0:
-            raise RuntimeError('At least one login type must be enabled')
-
-        logger.info('Enabled login types: %s', enabled_login_types)
-
-        api.register_password_auth_provider_callbacks(
-            auth_checkers=auth_checkers,
-        )
-
-    async def check_com_devture_shared_secret_auth(
-        self,
-        username: str,
-        login_type: str,
-        login_dict: "synapse.module_api.JsonDict",
-    ) -> Optional[
-        Tuple[
-            str,
-            Optional[Callable[["synapse.module_api.LoginResponse"], Awaitable[None]]],
-        ]
-    ]:
-        if login_type != "com.devture.shared_secret_auth":
-            return None
-        return await self._log_in_username_with_token("com.devture.shared_secret_auth", username, login_dict.get("token"))
-
-    async def check_m_login_password(
-        self,
-        username: str,
-        login_type: str,
-        login_dict: "synapse.module_api.JsonDict",
-    ) -> Optional[
-        Tuple[
-            str,
-            Optional[Callable[["synapse.module_api.LoginResponse"], Awaitable[None]]],
-        ]
-    ]:
-        if login_type != "m.login.password":
-            return None
-        return await self._log_in_username_with_token("m.login.password", username, login_dict.get("password"))
-
-    async def _log_in_username_with_token(
-        self,
-        login_type: str,
-        username: str,
-        token: str,
-    ) -> Optional[
-        Tuple[
-            str,
-            Optional[Callable[["synapse.module_api.LoginResponse"], Awaitable[None]]],
-        ]
-    ]:
-        logger.info('Authenticating user `%s` with login type `%s`', username, login_type)
-
-        full_user_id = self.api.get_qualified_user_id(username)
-
-        # The password (token) is supposed to be an HMAC of the full user id, keyed with the shared secret.
-        given_hmac = token.encode('utf-8')
-
-        h = hmac.new(self.shared_secret.encode('utf-8'), full_user_id.encode('utf-8'), hashlib.sha512)
-        computed_hmac = h.hexdigest().encode('utf-8')
-
-        if not hmac.compare_digest(computed_hmac, given_hmac):
-            logger.info('Bad hmac value for user: %s', full_user_id)
-            return None
-
-        user_info = await self.api.get_userinfo_by_id(full_user_id)
-        if user_info is None:
-            logger.info('Refusing to authenticate missing user: %s', full_user_id)
-            return None
-
-        logger.info('Authenticated user: %s', full_user_id)
-
-        return full_user_id, None