diff --git a/ukui-biometric-manager.spec b/ukui-biometric-manager.spec
index e9d69ca9a0d75e7172662037ecee9d9342422266..21db9a0d644bdc1986256290668ec5488100a006 100644
--- a/ukui-biometric-manager.spec
+++ b/ukui-biometric-manager.spec
@@ -1,6 +1,6 @@
 Name:          ukui-biometric-manager
 Version:       3.1.2
-Release:       4
+Release:       5
 Summary:       manager for biometric authentication
 License:       GPL-2+
 URL:           http://www.ukui.org
@@ -58,8 +58,10 @@ rm -rf $RPM_BUILD_ROOT
 ln -sf /usr/bin/biometric-manager /usr/bin/ukui-biometric-manager
 
 %postun
-if [ -e "/usr/bin/ukui-biometric-manager" ]; then
-    unlink /usr/bin/ukui-biometric-manager
+if [ "$1" -eq 0 ];then
+    if [ -e "/usr/bin/ukui-biometric-manager" ]; then
+        unlink /usr/bin/ukui-biometric-manager
+    fi
 fi
 
 
@@ -72,6 +74,9 @@ fi
 %{_datadir}/kylin-user-guide/data/guide
 
 %changelog
+* Fri May 23 2025 peijiankang <peijiankang@kylinos.cn> - 3.1.2-5
+- update postun info
+
 * Wed May 14 2025 peijiankang <peijiankang@kylinos.cn> - 3.1.2-4
 - fix unlink error