diff --git a/CHANGES.rst b/CHANGES.rst
index 7b2140dd3..4a031d0f8 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -30,6 +30,9 @@ Bug fixes in 23.1
 
 Breaking changes in 23.1
 ~~~~~~~~~~~~~~~~~~~~~~~~~
+- Support for the legacy ticket authentication was dropped: If the coordinator
+  logs ModuleNotFoundError on startup, switch the crossbar config to anonymous
+  authentication (see ``.crossbar/config-anonymous.yaml`` for an example).
 - The Debian package (``debian/``) no longer contains crossbar. Use the
   `coordinator container <https://hub.docker.com/r/labgrid/coordinator>`_ or
   install it into a separate local venv as desribed in the
diff --git a/labgrid/remote/authenticator.py b/labgrid/remote/authenticator.py
deleted file mode 100644
index a31321947..000000000
--- a/labgrid/remote/authenticator.py
+++ /dev/null
@@ -1,20 +0,0 @@
-import logging
-from pprint import pprint
-from twisted.internet.defer import inlineCallbacks
-from autobahn.twisted.wamp import ApplicationSession
-
-
-class AuthenticatorSession(ApplicationSession):
-    @inlineCallbacks
-    def onJoin(self, details):
-        def authenticate(realm, authid, details):  # pylint: disable=unused-argument
-            logging.warning("%s still uses deprecated ticket authentication. Please update.", authid)
-            pprint(details)
-            principal = {'role': 'public', 'extra': {}}
-            return principal
-
-        import warnings
-        warnings.warn("Ticket authentication is deprecated. Please switch to anonymous authentication once all your exporters/clients support it: .crossbar/config-anonymous.yaml",
-                      DeprecationWarning)
-
-        yield self.register(authenticate, 'org.labgrid.authenticate')
diff --git a/labgrid/remote/coordinator.py b/labgrid/remote/coordinator.py
index 8fcc5dbe6..f8572ddce 100644
--- a/labgrid/remote/coordinator.py
+++ b/labgrid/remote/coordinator.py
@@ -133,14 +133,11 @@ async def onConnect(self):
         enable_tcp_nodelay(self)
         self.join(
             self.config.realm,
-            authmethods=["anonymous", "ticket"],
+            authmethods=["anonymous"],
             authid="coordinator",
             authextra={"authid": "coordinator"},
         )
 
-    def onChallenge(self, challenge):
-        return "dummy-ticket"
-
     @locked
     async def onJoin(self, details):
         await self.subscribe(self.on_session_join, 'wamp.session.on_join')
diff --git a/pyproject.toml b/pyproject.toml
index 577bce655..c97a626f8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -161,9 +161,6 @@ testpaths = [
 ]
 addopts = "-p no:labgrid"
 
-[tool.pylint.MASTER]
-ignore-paths = ["labgrid/remote/authenticator.py"]
-
 [tool.pylint.imports]
 ignored-modules = ["gi"]