diff --git a/kafka-2.6.0-src.tgz b/kafka-2.4.0-src.tgz
similarity index 49%
rename from kafka-2.6.0-src.tgz
rename to kafka-2.4.0-src.tgz
index 19dbec6365c2a7562803bfea6698f887bf26e0d4..7d31f17b8a27af22077ee8a447d7bd79acbc11fa 100644
Binary files a/kafka-2.6.0-src.tgz and b/kafka-2.4.0-src.tgz differ
diff --git a/kafka.spec b/kafka.spec
index 342c9c322fecae4905f3ab800e6071a29ab8e1a9..5f0c4efab11534a5e97a201624091982c322dd74 100644
--- a/kafka.spec
+++ b/kafka.spec
@@ -3,7 +3,7 @@
 %define kafka_home /opt/kafka
 
 Name: kafka
-Version: 2.6.0
+Version: 2.4.0
 Release: 1%{?dist}
 Summary: A Distributed Streaming Platform.
 
@@ -30,8 +30,6 @@ exit 0
 %setup -q -n %{name}-%{version}-src
 
 %build
-unzip -q $RPM_SOURCE_DIR/gradle-6.5-bin.zip
-./gradle-6.5/bin/gradle
 ./gradlew jar
 
 %install
@@ -56,6 +54,9 @@ cp -n */*/build/dependant-libs*/* $RPM_BUILD_ROOT%{kafka_home}/libs
 rm -rf %{buildroot}
 
 %changelog
+* Sat Mar 20 2021 huanghaitao <huanghaitao8@huawei.com>
+- Rebase to 2.4.0
+
 * Sat Aug 15 2020 Hao Zhang <unioah@isrc.iscas.ac.cn>
 - init
 * Sat Oct 04 2020 Hao Zhang <unioah@isrc.iscas.ac.cn>