diff --git a/install.sh b/install.sh
index 162bc1c..078ea13 100644
--- a/install.sh
+++ b/install.sh
@@ -326,6 +326,16 @@ start_process_systemd(){
     judge "V2ray 启动"
 }
 
+acme_cron_update(){
+    if [[ "${ID}" == "centos" ]];then
+        sed -i "/acme.sh/c 0 0 * * 0 systemctl stop nginx && \"/root/.acme.sh\"/acme.sh --cron --home \"/root/.acme.sh\" \
+        > /dev/null && systemctl start nginx " /var/spool/cron/root
+    else
+        sed -i "/acme.sh/c 0 0 * * 0 systemctl stop nginx && \"/root/.acme.sh\"/acme.sh --cron --home \"/root/.acme.sh\" \
+        > /dev/null && systemctl start nginx " /var/spool/cron/crontabs/root
+    fi
+    judge "cron 计划任务更新"
+}
 show_information(){
     clear
 
@@ -367,9 +377,10 @@ main(){
     #将证书生成放在最后，尽量避免多次尝试脚本从而造成的多次证书申请
     ssl_install
     acme
-
+    
     show_information
     start_process_systemd
+    acme_cron_update
 }
 
 main