diff --git a/install.sh b/install.sh
index 47bcb37..c0e915d 100644
--- a/install.sh
+++ b/install.sh
@@ -701,28 +701,11 @@ handleNginx() {
 # 定时任务更新tls证书
 installCronTLS() {
 	echoContent skyBlue "\n进度  $1/${totalProgress} : 添加定时维护证书"
-	if ! crontab -l | grep -v grep | grep -q '/etc/v2ray-agent/install.sh'; then
-		crontab -l >/etc/v2ray-agent/backup_crontab.cron
-		if grep </etc/v2ray-agent/backup_crontab.cron -q /etc/v2ray-agent/reloadInstallTLS.sh; then
-			sed -i "s/30 1 \\* \\* \\* \\/bin\\/bash \\/etc\\/v2ray-agent\\/reloadInstallTLS.sh//g" $(grep "30 1 \* \* \* /bin/bash /etc/v2ray-agent/reloadInstallTLS.sh" -rl /etc/v2ray-agent/backup_crontab.cron)
-		fi
-		# 定时任务
-		echo "30 1 * * * /bin/bash /etc/v2ray-agent/install.sh RenewTLS" >>/etc/v2ray-agent/backup_crontab.cron
-		crontab /etc/v2ray-agent/backup_crontab.cron
-	fi
-
-	if [[ -n $(crontab -l | grep -v grep | grep '/etc/v2ray-agent/install.sh') ]]; then
-
-		crontab -l | uniq | awk '/./ {print}' >>/etc/v2ray-agent/backup_crontab.cron
-		local crontabResult=$(cat /etc/v2ray-agent/backup_crontab.cron | uniq | awk '/./ {print}')
-		echo "${crontabResult}" >/etc/v2ray-agent/backup_crontab.cron
-		crontab /etc/v2ray-agent/backup_crontab.cron
-		echoContent green " ---> 添加定时维护证书成功"
-	else
-		echo "30 1 * * * /bin/bash /etc/v2ray-agent/install.sh RenewTLS" >>/etc/v2ray-agent/backup_crontab.cron
-		crontab /etc/v2ray-agent/backup_crontab.cron
-		echoContent green " ---> 添加定时维护证书成功"
-	fi
+	crontab -l >/etc/v2ray-agent/backup_crontab.cron
+	sed '/v2ray-agent/d;/acme.sh/d' /etc/v2ray-agent/backup_crontab.cron >/etc/v2ray-agent/backup_crontab.cron
+	echo "30 1 * * * /bin/bash /etc/v2ray-agent/install.sh RenewTLS" >>/etc/v2ray-agent/backup_crontab.cron
+    crontab /etc/v2ray-agent/backup_crontab.cron
+    echoContent green " ---> 添加定时维护证书成功"
 }
 
 # 更新证书
@@ -730,7 +713,7 @@ renewalTLS() {
 	echoContent skyBlue "\n进度  1/1 : 更新证书"
 
 	if [[ -d "$HOME/.acme.sh/${currentHost}_ecc" ]] && [[ -f "$HOME/.acme.sh/${currentHost}_ecc/${currentHost}.key" ]] && [[ -f "$HOME/.acme.sh/${currentHost}_ecc/${currentHost}.cer" ]]; then
-		modifyTime=$(stat $HOME/.acme.sh/${currentHost}_ecc/${currentHost}.key | sed -n '7,6p' | awk '{print $2" "$3" "$4" "$5}')
+		modifyTime=$(stat $HOME/.acme.sh/${currentHost}_ecc/${currentHost}.cer | sed -n '7,6p' | awk '{print $2" "$3" "$4" "$5}')
 
 		modifyTime=$(date +%s -d "${modifyTime}")
 		currentTime=$(date +%s)