diff --git a/manifest.json b/manifest.json
index f0dca72..ee985fc 100644
--- a/manifest.json
+++ b/manifest.json
@@ -22,7 +22,7 @@
         "email": "pierre.levasseur@free.fr"
     },
     "requirements": {
-        "yunohost": ">= 4.3.0"
+        "yunohost": ">= 11.0.9"
     },
     "multi_instance": false,
     "services": [
diff --git a/scripts/upgrade b/scripts/upgrade
index 4c26f63..6a6febe 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -93,15 +93,8 @@ if [ "$upgrade_type" == "UPGRADE_APP" ]
 then
 	ynh_script_progression --message="Upgrading source files..." --weight=2
 
-	# Remove the app directory securely
-	ynh_secure_remove --file="$final_path"
-
 	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$final_path" #--keep="$final_path/db/config.php"
-
-	# Remove the tmp directory securely
-	#nh_secure_remove --file="$tmpdir"
-	ynh_exec_warn_less ynh_add_config --template="../conf/config.php" --destination="$final_path/db/config.php"
+	ynh_setup_source --dest_dir="$final_path" --keep="db/config.php"
 fi
 
 chmod 750 "$final_path"