diff --git a/scripts/install b/scripts/install
index c1d060b..091dd31 100644
--- a/scripts/install
+++ b/scripts/install
@@ -204,8 +204,10 @@ chown -R "$app":"$app" "$final_path"
 
 pushd $final_path
     ynh_use_nodejs
-	sudo -u $app env PATH=$PATH:$nodejs_path yarn install
-    sudo -u $app env PATH=$PATH:$nodejs_path npm run build
+	sudo -u $app env PATH=$PATH yarn cache clean
+	sudo -u $app env PATH=$PATH yarn --frozen-lockfile --non-interactive
+	sudo -u $app env PATH=$PATH yarn build
+	sudo -u $app env PATH=$PATH yarn --production --frozen-lockfile --non-interactive
 popd
 
 #=================================================