diff --git a/scripts/upgrade b/scripts/upgrade
index ce05276..54e5b52 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -59,8 +59,10 @@ then
     ynh_script_progression --message="Building UI..." --weight=5
 
     pushd $install_dir/build
-        corepack enable
-        corepack prepare pnpm@latest --activate
+        env $ynh_node_load_PATH corepack enable
+        env $ynh_node_load_PATH corepack prepare pnpm@latest --activate
+        ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH corepack enable
+        ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH corepack prepare pnpm@latest --activate
         ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH pnpm install
         ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH NODE_ENV=production pnpm build
         ynh_exec_warn_less ynh_exec_as $app ./localizefonts.sh