diff --git a/proto/common.proto b/proto/common.proto
index b6ea672..6d0e2b5 100644
--- a/proto/common.proto
+++ b/proto/common.proto
@@ -399,6 +399,7 @@ enum ObjectPrivilege {
     PrivilegeListAliases = 47;
 
     PrivilegeUpdateResourceGroups = 48;
+    PrivilegeAlterDatabase = 49;
 }
 
 message PrivilegeExt {
diff --git a/proto/milvus.proto b/proto/milvus.proto
index 8aa0396..01dac50 100644
--- a/proto/milvus.proto
+++ b/proto/milvus.proto
@@ -132,6 +132,7 @@ service MilvusService {
   rpc CreateDatabase(CreateDatabaseRequest) returns (common.Status) {}
   rpc DropDatabase(DropDatabaseRequest) returns (common.Status) {}
   rpc ListDatabases(ListDatabasesRequest) returns (ListDatabasesResponse) {}
+  rpc AlterDatabase(AlterDatabaseRequest) returns (common.Status) {}
 
   rpc ReplicateMessage(ReplicateMessageRequest) returns (ReplicateMessageResponse) {}
 }
@@ -1829,7 +1830,7 @@ message ListDatabasesRequest {
 message ListDatabasesResponse {
   option (common.privilege_ext_obj) = {
     object_type: Global
-    object_privilege: PrivilegeShowCollections
+    object_privilege: PrivilegeListDatabases
     object_name_index: -1
   };
   common.Status status = 1;
@@ -1837,6 +1838,18 @@ message ListDatabasesResponse {
   repeated uint64 created_timestamp = 3;
 }
 
+message AlterDatabaseRequest {
+  option (common.privilege_ext_obj) = {
+    object_type: Global
+    object_privilege: PrivilegeAlterDatabase
+    object_name_index: -1
+  };
+  common.MsgBase base = 1;
+  string db_name = 2;
+  string db_id = 3;
+  repeated common.KeyValuePair properties = 4;
+}
+
 message ReplicateMessageRequest {
   common.MsgBase base = 1;
   string channel_name = 2;