diff --git a/dask-gateway-server/dask_gateway_server/auth.py b/dask-gateway-server/dask_gateway_server/auth.py
index 48782383..171bf359 100644
--- a/dask-gateway-server/dask_gateway_server/auth.py
+++ b/dask-gateway-server/dask_gateway_server/auth.py
@@ -376,10 +376,7 @@ async def authenticate(self, request):
         if token is None:
             raise unauthorized("jupyterhub")
 
-        url = "{}/authorizations/token/{}".format(
-            self.jupyterhub_api_url,
-            quote(token, safe=""),
-        )
+        url = f"{self.jupyterhub_api_url}/api/user"
 
         kwargs = {
             "headers": {"Authorization": "token %s" % self.jupyterhub_api_token},