diff --git a/custom_components/victron/manifest.json b/custom_components/victron/manifest.json
index 62911a4..c1adefe 100644
--- a/custom_components/victron/manifest.json
+++ b/custom_components/victron/manifest.json
@@ -12,7 +12,7 @@
   "iot_class": "local_polling",
   "issue_tracker": "https://github.com/sfstar/hass-victron/issues",
   "requirements": [
-    "pymodbus==3.4.1"
+    "pymodbus>=3.3.1"
   ],
   "ssdp": [],
   "version": "0.0.11",