diff --git a/hooks/post_cert_update b/hooks/post_cert_update
new file mode 100644
index 0000000..91d776e
--- /dev/null
+++ b/hooks/post_cert_update
@@ -0,0 +1,5 @@
+#!/bin/bash
+
+if [ $1 == __DOMAIN__ ]; then
+    systemctl restart matrix-__APP__
+fi
diff --git a/scripts/backup b/scripts/backup
index 645ff1f..7c1727a 100644
--- a/scripts/backup
+++ b/scripts/backup
@@ -100,6 +100,14 @@ ynh_script_progression --message="Backing up synapse log..." --weight=1
 
 ynh_backup --src_path="/var/log/matrix-$app"
 
+#=================================================
+# BACKUP HOOKS
+#=================================================
+ynh_script_progression --message="Backing up synapse hook..." --weight=1
+
+# Copy hook
+ynh_backup --src_path "/etc/yunohost/hooks.d/post_cert_update/50-$app"
+
 #=================================================
 # END OF SCRIPT
 #=================================================
diff --git a/scripts/install b/scripts/install
index 49c2c78..4a8280a 100644
--- a/scripts/install
+++ b/scripts/install
@@ -363,6 +363,15 @@ ynh_script_progression --message="Configuring SSOwat..." --weight=1
 # The script "add_sso_conf.py" will just add en entry for the path "/_matrix" in the sso conf.json.persistent file in the cathegory "skipped_urls".
 python3 ../conf/add_sso_conf.py || ynh_die --message="Your file /etc/ssowat/conf.json.persistent doesn't respect the json syntax. Please fix the syntax to install this app. For more information see here: https://github.com/YunoHost-Apps/synapse_ynh/issues/32"
 
+#=================================================
+# UPDATE HOOKS
+#=================================================
+
+# WARNING : theses command are used in INSTALL, UPGRADE
+# For any update do it in all files
+ynh_replace_string __APP__ $app ../hooks/post_cert_update
+ynh_replace_string __DOMAIN__ $domain ../hooks/post_cert_update
+
 #=================================================
 # SECURE FILES AND DIRECTORIES
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 47f3ffe..892f552 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -381,6 +381,15 @@ chmod 600 /etc/matrix-$app/$server_name.signing.key
 setfacl -R -m user:turnserver:rX  /etc/matrix-$app
 setfacl -R -m user:turnserver:rwX  /var/log/matrix-$app
 
+#=================================================
+# UPDATE HOOKS
+#=================================================
+
+# WARNING : theses command are used in INSTALL, UPGRADE
+# For any update do it in all files
+ynh_replace_string __APP__ $app ../hooks/post_cert_update
+ynh_replace_string __DOMAIN__ $domain ../hooks/post_cert_update
+
 #=================================================
 # UPDATE VERSION SETTINGS
 #=================================================