diff --git a/scripts/upgrade b/scripts/upgrade
index aadc0e6..9a416e2 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -137,6 +137,7 @@ pushd "$final_path"
 	ynh_exec_warn_less npm install -g bower
 	ynh_exec_warn_less bower update --allow-root
 	ynh_exec_warn_less npm i
+	ynh_exec_warn_less npm run build
 popd
 
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