diff --git a/scripts/upgrade b/scripts/upgrade
index 8bc0dd9..5d102c3 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -144,6 +144,8 @@ chown -R $app: $final_path
 pushd $final_path || ynh_die
  	ynh_use_nodejs
  	ynh_exec_as $app env $ynh_node_load_PATH src/bin/installDeps.sh
+	ynh_exec_warn_less ynh_exec_as $app env "$ynh_node_load_PATH" npm cache clean --force
+	ynh_exec_warn_less ynh_exec_as $app env "$ynh_node_load_PATH" npm install --upgrade 
 popd || ynh_die 
 
 #=================================================