diff --git a/scripts/install b/scripts/install
index 7380a3f..c87d2b8 100644
--- a/scripts/install
+++ b/scripts/install
@@ -63,7 +63,7 @@ ynh_script_progression --message="Installing $app..." --weight=1
 
 pushd $install_dir
  	ynh_use_nodejs
-	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH NODE_ENV=production $ynh_npm install
+	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH $ynh_npm install --production
 popd
 
 #=================================================
diff --git a/scripts/upgrade b/scripts/upgrade
index 2616c59..6083828 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -73,7 +73,7 @@ ynh_script_progression --message="Upgrading $app..." --weight=1
 
 pushd "$install_dir"
 	ynh_use_nodejs
-	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH $ynh_npm install
+	ynh_exec_warn_less sudo -u $app env $ynh_node_load_PATH $ynh_npm install --production
 popd
 
 #=================================================