diff --git a/start b/start
index 87cbfd3..0d1cf66 100755
--- a/start
+++ b/start
@@ -15,7 +15,7 @@ if [ "${role}" = "app" ]; then
 	if [ "${env}" != "local" -a -r "artisan" ]; then
 		# See if we need to refresh our dependancies
 		if [[ -r composer.lock && ( -e .composer.refresh || ! -d vendor ) ]]; then
-			composer install && ( test -e .composer.refresh && rm -f .composer.refresh )
+			su www-data -s /bin/sh -c "composer install" && ( test -e .composer.refresh && rm -f .composer.refresh )
 		fi
 
 		echo "Caching configuration..."