diff --git a/patroni_exporter.py b/patroni_exporter.py
index 57373d0..eb90db4 100755
--- a/patroni_exporter.py
+++ b/patroni_exporter.py
@@ -285,6 +285,7 @@ def app(self, environ: Dict, start_response: Any) -> Iterable[ByteString]:
 
         url = urlparse(request_uri(environ))
         if url.path == '/health':
+            self.collector.scrape_patroni()  # refresh collector status
             start_response(self.collector.status, [('Content-Type',
                                                     'application/json')])
             return [b'{}']