diff --git a/debbuild/22.04/DEBIAN/postinst b/debbuild/22.04/DEBIAN/postinst
index 966fd79..5ddc009 100644
--- a/debbuild/22.04/DEBIAN/postinst
+++ b/debbuild/22.04/DEBIAN/postinst
@@ -124,6 +124,9 @@ if [ -e "${NginxSiteAvailable}/default" ]; then
     sed -i 's/listen \[::\]:80 default_server;/listen \[::\]:1080 default_server;/g' ${NginxSiteAvailable}/default
 fi 
 
+# disable auto upgrade
+systemctl disable --now unattended-upgrades
+
 systemctl enable restagent.service
 systemctl enable crontask.service
 systemctl enable sshsvc.service
diff --git a/debbuild/DEBIAN/postinst b/debbuild/DEBIAN/postinst
index 58f43db..202a2a7 100644
--- a/debbuild/DEBIAN/postinst
+++ b/debbuild/DEBIAN/postinst
@@ -124,6 +124,9 @@ if [ -e "${NginxSiteAvailable}/default" ]; then
     sed -i 's/listen \[::\]:80 default_server;/listen \[::\]:1080 default_server;/g' ${NginxSiteAvailable}/default
 fi 
 
+# disable auto upgrade
+systemctl disable --now unattended-upgrades
+
 systemctl enable restagent.service
 systemctl enable crontask.service
 systemctl enable sshsvc.service