diff --git a/src/k8s-extension/HISTORY.rst b/src/k8s-extension/HISTORY.rst
index 9e06fd0b8c7..a2d13222aa2 100644
--- a/src/k8s-extension/HISTORY.rst
+++ b/src/k8s-extension/HISTORY.rst
@@ -5,7 +5,7 @@ Release History
 
 1.4.4
 ++++++++++++++++++
-* drop `azure-mgmt-relay` sdk dependency for Azure Monitor K8s extensions
+* drop 'azure-mgmt-relay' sdk dependency
 
 1.4.3
 ++++++++++++++++++
diff --git a/src/k8s-extension/azext_k8s_extension/azext_metadata.json b/src/k8s-extension/azext_k8s_extension/azext_metadata.json
index c91b1a720cc..a4a3d96c484 100644
--- a/src/k8s-extension/azext_k8s_extension/azext_metadata.json
+++ b/src/k8s-extension/azext_k8s_extension/azext_metadata.json
@@ -1,3 +1,3 @@
 {
-    "azext.minCliCoreVersion": "2.50.0"
+    "azext.minCliCoreVersion": "2.51.0"
 }
\ No newline at end of file
diff --git a/src/k8s-extension/azext_k8s_extension/partner_extensions/AzureMLKubernetes.py b/src/k8s-extension/azext_k8s_extension/partner_extensions/AzureMLKubernetes.py
index 2386bdffe3a..e45dd2f9268 100644
--- a/src/k8s-extension/azext_k8s_extension/partner_extensions/AzureMLKubernetes.py
+++ b/src/k8s-extension/azext_k8s_extension/partner_extensions/AzureMLKubernetes.py
@@ -346,7 +346,7 @@ def Update(self, cmd, resource_group_name, cluster_name, auto_upgrade_minor_vers
                         cmd, subscription_id, resource_group_name, cluster_name, '', self.RELAY_HC_AUTH_NAME, True)
                     configuration_protected_settings[self.RELAY_SERVER_CONNECTION_STRING] = relay_connection_string
                     logger.info("Get relay connection string succeeded.")
-                except HttpOperationError as ex:
+                except azure.core.exceptions.HttpResponseError as ex:
                     if ex.response.status_code == 404:
                         raise ResourceNotFoundError("Relay server not found. "
                                                     "Check {} for more information.".format(self.TSG_LINK)) from ex
@@ -632,8 +632,7 @@ def _get_relay_connection_str(
                                                                    "namespace_name": relay_namespace_name,
                                                                    "hybrid_connection_name": hybrid_connection_name,
                                                                    "name": auth_rule_name})
-
-    except HttpOperationError as e:
+    except azure.core.exceptions.HttpResponseError as e:
         if e.response.status_code != 404 or get_key_only:
             raise e
         # create namespace