diff --git a/light9/metrics.py b/light9/metrics.py
--- a/light9/metrics.py
+++ b/light9/metrics.py
@@ -22,7 +22,6 @@ metrics('foo', label1=one). Need histogr
 
 """
 from typing import Dict, Tuple, Callable, Type, TypeVar, cast
-import cyclone.web
 from prometheus_client import Counter, Gauge, Metric, Summary
 from prometheus_client.exposition import generate_latest
 from prometheus_client.registry import REGISTRY
@@ -77,15 +76,6 @@ def metrics(name: str, **labels):
     return _MetricsRequest(name, **labels)
 
 
-class _CycloneMetrics(cyclone.web.RequestHandler):
-
-    def get(self):
-        self.add_header('content-type', 'text/plain')
-        self.write(generate_latest(REGISTRY))
-
-
-def metricsRoute() -> Tuple[str, Type[cyclone.web.RequestHandler]]:
-    return ('/metrics', _CycloneMetrics)
 
 
 """