diff --git a/ovirt-engine-ui-extensions.spec b/ovirt-engine-ui-extensions.spec
index 8b5571a328b68f8715815d4e7c80f2af6c753930..b69fb8c55d58e1a22b6631b0007fc2d265f2d9ae 100644
--- a/ovirt-engine-ui-extensions.spec
+++ b/ovirt-engine-ui-extensions.spec
@@ -1,7 +1,7 @@
 Name: ovirt-engine-ui-extensions
 Summary: oVirt UI Extensions
 Version: 1.2.6
-Release: 1
+Release: 2
 License: ASL 2.0
 URL: http://www.ovirt.org/
 Source: ovirt-engine-ui-extensions-1.2.6.tar.gz
@@ -35,6 +35,13 @@ Extensions include:
 # Set up Node.js environment with dependencies linked to ./node_modules:
 source %{_datadir}/ovirt-engine-nodejs-modules/setup-env.sh
 
+# Change hardcoded deafult hash algorithm from legacy md4 to sha512
+sed -i 's/md4/sha512/g' node_modules/webpack/lib/*.js
+sed -i 's/md4/sha512/g' node_modules/webpack/lib/optimize/*.js
+sed -i 's/md4/sha512/g' node_modules/copy-webpack-plugin/dist/*.js
+sed -i 's/md4/sha512/g' node_modules/terser-webpack-plugin/dist/*.js
+sed -i 's/md4/sha512/g' node_modules/babel-loader/lib/*.js
+
 # Build the application:
 yarn build
 
@@ -67,6 +74,9 @@ ln -s "%{_datadir}/%{name}/ansible-playbooks/ovirt-cluster-upgrade.yml" "%{build
 %license LICENSE
 
 %changelog
+* Fri Mar 3 2023 yanjianqing<yanjianqing@kylinos.cn> -1.2.6-2
+- Change hardcoded deafult hash algorithm from legacy md4 to sha512
+
 * Tue Jul 6 2021 kymayl<mayilin@kylinos.cn> - 1.2.6-1
 - upgrade package