diff --git a/scripts/_common.sh b/scripts/_common.sh
index 07a84ad..cbc1622 100644
--- a/scripts/_common.sh
+++ b/scripts/_common.sh
@@ -4,6 +4,9 @@
 # COMMON VARIABLES
 #=================================================
 
+# dependencies used by the app
+pkg_dependencies="postgresql"
+
 # dependencies used by the app
 YNH_PHP_VERSION="7.3"
 
diff --git a/scripts/install b/scripts/install
index 0513cde..5fa6d7a 100755
--- a/scripts/install
+++ b/scripts/install
@@ -46,7 +46,18 @@ ynh_app_setting_set --app=$app --key=domain --value=$domain
 ynh_app_setting_set --app=$app --key=path --value=$path_url
 
 #=================================================
+<<<<<<< Updated upstream
 # CREATE A POSTGRESQL DATABASE
+=======
+# INSTALL DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Installing dependencies..." --weight=20
+
+ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies
+
+#=================================================
+# CREATE A MYSQL DATABASE
+>>>>>>> Stashed changes
 #=================================================
 ynh_script_progression --message="Creating a PostgreSQL database..." --weight=2
 
diff --git a/scripts/remove b/scripts/remove
index 716072b..3f8042b 100755
--- a/scripts/remove
+++ b/scripts/remove
@@ -30,6 +30,17 @@ ynh_script_progression --message="Removing the PostgreSQL database..." --weight=
 
 # Remove a database if it exists, along with the associated user
 ynh_psql_remove_db --db_user=$db_user --db_name=$db_name
+<<<<<<< Updated upstream
+=======
+
+#=================================================
+# REMOVE DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Removing dependencies..." --weight=1
+
+# Remove metapackage and its dependencies
+ynh_remove_app_dependencies
+>>>>>>> Stashed changes
 
 #=================================================
 # REMOVE APP MAIN DIR
diff --git a/scripts/restore b/scripts/restore
index c6710a0..6f74f19 100644
--- a/scripts/restore
+++ b/scripts/restore
@@ -49,6 +49,14 @@ test ! -d $final_path \
 
 ynh_restore_file --origin_path="/etc/nginx/conf.d/$domain.d/$app.conf"
 
+#=================================================
+# RECREATE THE DEDICATED USER
+#=================================================
+ynh_script_progression --message="Recreating the dedicated system user..." --weight=1
+
+# Create the dedicated user (if not existing)
+ynh_system_user_create --username=$app --home_dir="$final_path"
+
 #=================================================
 # RESTORE THE APP MAIN DIR
 #=================================================
@@ -56,6 +64,18 @@ ynh_script_progression --message="Restoring the app main directory..." --weight=
 
 ynh_restore_file --origin_path="$final_path"
 
+chmod 750 "$final_path"
+chmod -R o-rwx "$final_path"
+chown -R $app:www-data "$final_path"
+
+#=================================================
+# REINSTALL DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Reinstalling dependencies..." --weight=6
+
+# Define and install dependencies
+ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies
+
 #=================================================
 # RESTORE THE POSTGRESQL DATABASE
 #=================================================
@@ -65,14 +85,6 @@ ynh_psql_test_if_first_run
 ynh_psql_setup_db --db_user=$db_user --db_name=$db_name --db_pwd=$db_pwd
 ynh_psql_execute_file_as_root --file="./db.sql" --database=$db_name
 
-#=================================================
-# RECREATE THE DEDICATED USER
-#=================================================
-ynh_script_progression --message="Recreating the dedicated system user..." --weight=3
-
-# Create the dedicated user (if not existing)
-ynh_system_user_create --username=$app
-
 #=================================================
 # RESTORE USER RIGHTS
 #=================================================