diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/query/input/TraceQueryCondition.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/query/input/TraceQueryCondition.java
index 9c5d0cc12d44fe225071b32e370509b9be92962b..c79b18643266c3c6dce4c95da731662b5e7ca10a 100644
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/query/input/TraceQueryCondition.java
+++ b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/query/input/TraceQueryCondition.java
@@ -24,7 +24,6 @@ import lombok.Setter;
 import org.apache.skywalking.oap.server.core.analysis.manual.searchtag.Tag;
 import org.apache.skywalking.oap.server.core.query.type.Pagination;
 import org.apache.skywalking.oap.server.core.query.type.QueryOrder;
-import org.apache.skywalking.oap.server.core.query.type.TraceSource;
 import org.apache.skywalking.oap.server.core.query.type.TraceState;
 
 @Getter
@@ -41,5 +40,4 @@ public class TraceQueryCondition {
     private QueryOrder queryOrder;
     private Pagination paging;
     private List<Tag> tags;
-    private TraceSource prioritizedSource;
 }
diff --git a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/query/type/TraceSource.java b/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/query/type/TraceSource.java
deleted file mode 100644
index cf9bcbeed66061e0e60aae4fdcca727f66ed8013..0000000000000000000000000000000000000000
--- a/oap-server/server-core/src/main/java/org/apache/skywalking/oap/server/core/query/type/TraceSource.java
+++ /dev/null
@@ -1,23 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- *
- */
-
-package org.apache.skywalking.oap.server.core.query.type;
-
-public enum TraceSource {
-    SKYWALKING, ZIPKIN
-}
diff --git a/oap-server/server-query-plugin/query-graphql-plugin/src/main/resources/query-protocol b/oap-server/server-query-plugin/query-graphql-plugin/src/main/resources/query-protocol
index 6c461cc60a653de801e51ea914b78a243ce66819..edf5871a3a2e8f7300eb06175240b56c21072fe9 160000
--- a/oap-server/server-query-plugin/query-graphql-plugin/src/main/resources/query-protocol
+++ b/oap-server/server-query-plugin/query-graphql-plugin/src/main/resources/query-protocol
@@ -1 +1 @@
-Subproject commit 6c461cc60a653de801e51ea914b78a243ce66819
+Subproject commit edf5871a3a2e8f7300eb06175240b56c21072fe9