diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1835947..6964c8d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 2.1.6
+
+- Fix update interface state [#145](https://github.com/elad-bar/ha-edgeos/issues/145)
+
 ## 2.1.5
 
 - Handling undefined interface types [#137](https://github.com/elad-bar/ha-edgeos/issues/137)
diff --git a/custom_components/edgeos/managers/rest_api.py b/custom_components/edgeos/managers/rest_api.py
index cb56207..378d95e 100644
--- a/custom_components/edgeos/managers/rest_api.py
+++ b/custom_components/edgeos/managers/rest_api.py
@@ -253,11 +253,11 @@ def _get_post_headers(self):
 
         return headers
 
-    async def _async_post(self, endpoint, data):
+    async def _async_post(self, endpoint, data, action: str | None = None):
         result = None
 
         try:
-            url = self._build_endpoint(endpoint)
+            url = self._build_endpoint(endpoint, action=action)
 
             if self._session is not None:
                 headers = self._get_post_headers()
@@ -506,7 +506,7 @@ async def set_interface_state(
         _LOGGER.info(f"Set state of interface {interface.name} to {is_enabled}")
 
         modified = False
-        endpoint = API_DELETE if is_enabled else API_SET
+        action = API_DELETE if is_enabled else API_SET
 
         data = {
             API_DATA_INTERFACES: {
@@ -514,7 +514,7 @@ async def set_interface_state(
             }
         }
 
-        result_json = await self._async_post(endpoint, data)
+        result_json = await self._async_post(API_URL_DATA, data, action=action)
 
         if result_json is not None:
             set_response = result_json.get(API_DATA_SAVE.upper(), {})
diff --git a/custom_components/edgeos/manifest.json b/custom_components/edgeos/manifest.json
index f64fbe4..0c78b63 100644
--- a/custom_components/edgeos/manifest.json
+++ b/custom_components/edgeos/manifest.json
@@ -8,5 +8,5 @@
   "iot_class": "local_polling",
   "issue_tracker": "https://github.com/elad-bar/ha-edgeos/issues",
   "requirements": ["aiohttp"],
-  "version": "2.1.5"
+  "version": "2.1.6"
 }