diff --git a/README.md b/README.md
index c3b9400..28d0cf3 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ BookStack is an opinionated wiki system that provides a pleasant and simple out
 - Diagrams.net Integration
 
 
-**Shipped version:** 22.09~ynh1
+**Shipped version:** 22.09.1~ynh1
 
 
 **Demo:** https://demo.bookstackapp.com
diff --git a/README_fr.md b/README_fr.md
index ab87837..2d06dd6 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -26,7 +26,7 @@ BookStack is an opinionated wiki system that provides a pleasant and simple out
 - Multi-Lingual
 
 
-**Version incluse :** 22.09~ynh1
+**Version incluse :** 22.09.1~ynh1
 
 
 **Démo :** https://demo.bookstackapp.com
diff --git a/conf/app.src b/conf/app.src
index 9e40e6d..3fa5ab7 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/BookStackApp/BookStack/archive/refs/tags/v22.09.tar.gz
-SOURCE_SUM=4807d646c2327f26d19df398e1f2ecc54d47a967eefbd80127c611fb1b1a9dbb
+SOURCE_URL=https://github.com/BookStackApp/BookStack/archive/refs/tags/v22.09.1.tar.gz
+SOURCE_SUM=f66e8f0dad102997bb441bfcb8dcb8ab634ed4970623a6fbee4047399b21116a
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
diff --git a/conf/systemd.service b/conf/systemd.service
index fdb603b..af151e3 100644
--- a/conf/systemd.service
+++ b/conf/systemd.service
@@ -7,5 +7,35 @@ Group=__APP__
 Restart=always
 ExecStart=/usr/bin/php__PHPVERSION__ __FINALPATH__/artisan queue:work --sleep=3 --tries=1 --max-time=3600
 
+# 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
+ProtectSystem=full
+ProtectControlGroups=yes
+ProtectKernelModules=yes
+ProtectKernelTunables=yes
+LockPersonality=yes
+SystemCallFilter=~@clock @debug @module @mount @obsolete @reboot @setuid @swap
+
+# 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
\ No newline at end of file
diff --git a/manifest.json b/manifest.json
index 6d513c3..296dd94 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Platform to create documentation/wiki content",
         "fr": "Plateforme pour créer du contenu de documentation/wiki"
     },
-    "version": "22.09~ynh1",
+    "version": "22.09.1~ynh1",
     "url": "https://www.bookstackapp.com/",
     "upstream": {
         "license": "MIT",
diff --git a/scripts/_common.sh b/scripts/_common.sh
index 368e7fa..4f7a623 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -8,7 +8,7 @@ YNH_PHP_VERSION="8.0"
 
 pkg_dependencies="php${YNH_PHP_VERSION}-curl php${YNH_PHP_VERSION}-mysql php${YNH_PHP_VERSION}-ldap php${YNH_PHP_VERSION}-mbstring php${YNH_PHP_VERSION}-tidy php${YNH_PHP_VERSION}-xml php${YNH_PHP_VERSION}-zip php${YNH_PHP_VERSION}-gd"
 
-YNH_COMPOSER_VERSION=2.3.5
+YNH_COMPOSER_VERSION=2.4.2
 
 #=================================================
 # PERSONAL HELPERS