diff --git a/scripts/upgrade b/scripts/upgrade
index 9ef6ddd..0d5e196 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -138,7 +138,7 @@ chown $app:$app "$install_dir/credentials.json"
 ynh_script_progression --message="Upgrading $app..." --weight=10
 
 pushd $install_dir
-	ynh_exec_warn_less npm install pnpm -g
+	ynh_exec_warn_less env $ynh_node_load_PATH corepack enable && corepack prepare pnpm@latest --activate
 	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH ETHERPAD_PRODUCTION=true COREPACK_ENABLE_DOWNLOAD_PROMPT=0 bin/installDeps.sh && \
  		ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH COREPACK_ENABLE_DOWNLOAD_PROMPT=0 pnpm run install-plugins \
 		ep_align@${ep_align_version} \