diff --git a/check_process b/check_process
index 146305e..468c600 100644
--- a/check_process
+++ b/check_process
@@ -11,6 +11,7 @@
 		setup_private=1
 		setup_public=1
 		upgrade=1
+		#upgrade=1	from_commit=CommitHash
 		backup_restore=1
 		multi_instance=1
 		change_url=1
diff --git a/conf/nginx.conf b/conf/nginx.conf
index 35e5861..ddace06 100644
--- a/conf/nginx.conf
+++ b/conf/nginx.conf
@@ -1,7 +1,7 @@
 #sub_path_only rewrite ^__PATH__$ __PATH__/ permanent;
 location __PATH__ {
   
-  proxy_pass http://127.0.0.1:9117;
+  proxy_pass http://127.0.0.1:__PORT__;
   proxy_set_header X-Real-IP $remote_addr;
   proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
   proxy_set_header X-Forwarded-Proto $scheme;
diff --git a/conf/systemd.service b/conf/systemd.service
index dca18f2..fdd414f 100644
--- a/conf/systemd.service
+++ b/conf/systemd.service
@@ -13,5 +13,39 @@ WorkingDirectory=__FINALPATH__/
 ExecStart=/bin/sh "__FINALPATH__/jackett_launcher.sh" --Port __PORT__ --NoUpdates
 TimeoutStopSec=30
 
+# Sandboxing options to harden security
+# Depending on specificities of your service/app, you may need to tweak these
+# .. but this should be a good baseline
+# Details for these options: https://www.freedesktop.org/software/systemd/man/systemd.exec.html
+NoNewPrivileges=yes
+PrivateTmp=yes
+PrivateDevices=yes
+RestrictAddressFamilies=AF_UNIX AF_INET AF_INET6 AF_NETLINK
+RestrictNamespaces=yes
+RestrictRealtime=yes
+DevicePolicy=closed
+ProtectClock=yes
+ProtectHostname=yes
+ProtectProc=invisible
+ProtectSystem=full
+ProtectControlGroups=yes
+ProtectKernelModules=yes
+ProtectKernelTunables=yes
+LockPersonality=yes
+SystemCallArchitectures=native
+SystemCallFilter=~@clock @debug @module @mount @obsolete @reboot @setuid @swap @cpu-emulation @privileged
+
+# Denying access to capabilities that should not be relevant for webapps
+# Doc: https://man7.org/linux/man-pages/man7/capabilities.7.html
+CapabilityBoundingSet=~CAP_RAWIO CAP_MKNOD
+CapabilityBoundingSet=~CAP_AUDIT_CONTROL CAP_AUDIT_READ CAP_AUDIT_WRITE
+CapabilityBoundingSet=~CAP_SYS_BOOT CAP_SYS_TIME CAP_SYS_MODULE CAP_SYS_PACCT
+CapabilityBoundingSet=~CAP_LEASE CAP_LINUX_IMMUTABLE CAP_IPC_LOCK
+CapabilityBoundingSet=~CAP_BLOCK_SUSPEND CAP_WAKE_ALARM
+CapabilityBoundingSet=~CAP_SYS_TTY_CONFIG
+CapabilityBoundingSet=~CAP_MAC_ADMIN CAP_MAC_OVERRIDE
+CapabilityBoundingSet=~CAP_NET_ADMIN CAP_NET_BROADCAST CAP_NET_RAW
+CapabilityBoundingSet=~CAP_SYS_ADMIN CAP_SYS_PTRACE CAP_SYSLOG
+
 [Install]
 WantedBy=multi-user.target
diff --git a/manifest.json b/manifest.json
index 8b6b464..e644af9 100644
--- a/manifest.json
+++ b/manifest.json
@@ -18,7 +18,7 @@
         "email": "navanchauhan+yunohost@gmail.com"
     },
     "requirements": {
-        "yunohost": ">= 4.3.0"
+        "yunohost": ">= 11.0.9"
     },
     "multi_instance": true,
     "services": [
diff --git a/scripts/upgrade b/scripts/upgrade
index 7155f55..51d4813 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -142,4 +142,4 @@ ynh_systemd_action --service_name=nginx --action=reload
 # END OF SCRIPT
 #=================================================
 
-ynh_script_progression --message="Upgrade of $app completed" --time --last
+ynh_script_progression --message="Upgrade of $app completed" --last