diff --git a/custom_components/trinnov_altitude/config_flow.py b/custom_components/trinnov_altitude/config_flow.py
index 948624c..299737a 100644
--- a/custom_components/trinnov_altitude/config_flow.py
+++ b/custom_components/trinnov_altitude/config_flow.py
@@ -8,7 +8,6 @@
 from trinnov_altitude.exceptions import (
     ConnectionFailedError,
     ConnectionTimeoutError,
-    InvalidMacAddressOUIError,
     MalformedMacAddressError,
 )
 import voluptuous as vol
@@ -58,8 +57,6 @@ async def async_step_user(
                 await device.wait_for_initial_sync()
             except MalformedMacAddressError:
                 errors[CONF_MAC] = "invalid_mac"
-            except InvalidMacAddressOUIError:
-                errors[CONF_MAC] = "invalid_mac"
             except ConnectionFailedError:
                 errors[CONF_HOST] = "invalid_host"
             except ConnectionTimeoutError:
diff --git a/custom_components/trinnov_altitude/manifest.json b/custom_components/trinnov_altitude/manifest.json
index d03cbbc..03b0984 100644
--- a/custom_components/trinnov_altitude/manifest.json
+++ b/custom_components/trinnov_altitude/manifest.json
@@ -7,6 +7,6 @@
   "iot_class": "local_push",
   "issue_tracker": "https://github.com/binarylogic/trinnov-altitude-homeassistant/issues",
   "loggers": ["trinnov_altitude"],
-  "requirements": ["trinnov_altitude>=1.2.3"],
-  "version": "1.1.8"
+  "requirements": ["trinnov_altitude>=1.2.4"],
+  "version": "1.1.9"
 }