diff --git a/scripts/upgrade b/scripts/upgrade
index f845b4f..34e4e13 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -71,13 +71,10 @@ fi
 
 if [ "$upgrade_type" == "UPGRADE_APP" ]
 then
-	# purge the "bundles" folder to avoid pointlessly taking up space at each update
-	ynh_secure_remove --file="$install_dir/bundles/"
-
 	ynh_script_progression --message="Upgrading source files..." --weight=1
 
 	# Download, check integrity, uncompress and patch the source from app.src
-	ynh_setup_source --dest_dir="$install_dir" --keep="config.json"
+	ynh_setup_source --dest_dir="$install_dir" --full_replace=1 --keep="config.json"
 fi
 
 chmod -R o-rwx "$install_dir"