diff --git a/custom_components/rki_covid/manifest.json b/custom_components/rki_covid/manifest.json
index 91802d5..a57bf3c 100644
--- a/custom_components/rki_covid/manifest.json
+++ b/custom_components/rki_covid/manifest.json
@@ -1,6 +1,7 @@
 {
   "domain": "rki_covid",
   "version": "1.5.1",
+  "iot_class": "cloud_polling",
   "name": "Robert-Koch Institut COVID Numbers",
   "documentation": "https://github.com/thebino/rki_covid/blob/master/README.md",
   "issue_tracker": "https://github.com/thebino/rki_covid/issues",