diff --git a/scripts/upgrade b/scripts/upgrade
index 8db744e..1bf4e6e 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -79,7 +79,7 @@ ynh_setup_source "$final_path"
 cp -a ${final_path}.old/data ${final_path}
 
 # delete temp directory
-rm -Rf ${final_path}.old
+ynh_secure_remove ${final_path}.old
 
 #=================================================
 # NGINX CONFIGURATION