diff --git a/security-tool.spec b/security-tool.spec
index a29a945..055279d 100644
--- a/security-tool.spec
+++ b/security-tool.spec
@@ -1,7 +1,7 @@
 Summary: openEuler Security Tool
 Name   : security-tool
 Version: 2.0
-Release: 1.81
+Release: 1.82
 Source0: https://gitee.com/openeuler/security-tool/repository/archive/v2.0.tar.gz
 License: Mulan PSL v2
 URL: https://gitee.com/openeuler/security-tool
@@ -53,7 +53,7 @@ rm -rf $RPM_BUILD_ROOT
 %pre
 
 %post
-sed -i 's/password-auth$/password-auth-crond/g' /etc/pam.d/crond
+sed -i 's/system-auth$/password-auth-crond/g' /etc/pam.d/crond
 
 if [ $1 -ge 2 ]
 then
@@ -76,7 +76,7 @@ systemctl enable openEuler-security.service
 %systemd_preun openEuler-security.service
 if [ $1 -eq 0 ]
 then
-    sed -i 's/password-auth-crond$/password-auth/g' /etc/pam.d/crond
+    sed -i 's/password-auth-crond$/system-auth/g' /etc/pam.d/crond
 fi
 
 %postun
@@ -122,6 +122,9 @@ fi
 %attr(0500,root,root) %{_sbindir}/security-tool.sh
 
 %changelog
+* Mon Aug 29 2022 zhengxiaoxiao <zhengxiaoxiao2@huawei.com> - 2.0-1.82
+- fix sed keyword error in /etc/pam.d/crond
+
 * Mon Aug 15 2022 zhengxiaoxiao <zhengxiaoxiao2@huawei.com> - 2.0-1.81
 - add secure hostKey algorithms