diff --git a/custom_components/solarman/manifest.json b/custom_components/solarman/manifest.json
index c3e9335..5e3c81b 100644
--- a/custom_components/solarman/manifest.json
+++ b/custom_components/solarman/manifest.json
@@ -8,6 +8,6 @@
   "integration_type": "device",
   "iot_class": "local_polling",
   "issue_tracker": "https://github.com/davidrapan/ha-solarman/issues",
-  "requirements": ["propcache", "pyyaml", "umodbus"],
+  "requirements": ["propcache", "pyyaml", "umodbus", "aiofiles"],
   "version": "24.12.20_2"
 }