diff --git a/package.json b/package.json
index c9661394..f634a1d0 100644
--- a/package.json
+++ b/package.json
@@ -33,7 +33,7 @@
         "build": "tsc --p tsconfig.build.json && vite build && npm run build:types && npm run minify",
         "build:test": "tsc --p tsconfig.build.json && vite build",
         "build:types": "tsc --emitDeclarationOnly -p tsconfig.build.json && rm -rf dist/packages && mv dist/src dist/types",
-        "minify": "./node_modules/vite/node_modules/.bin/esbuild dist/orillusion.es.max.js --minify --outfile=dist/orillusion.es.js && ./node_modules/vite/node_modules/.bin/esbuild dist/orillusion.umd.max.js --minify --outfile=dist/orillusion.umd.js",
+        "minify": "./node_modules/vite/node_modules/.bin/esbuild dist/orillusion.es.max.js --sourcemap --minify --outfile=dist/orillusion.es.js && ./node_modules/vite/node_modules/.bin/esbuild dist/orillusion.umd.max.js --minify --sourcemap --outfile=dist/orillusion.umd.js",
         "test": "electron test/ci/main.js",
         "test:ci": "xvfb-maybe -- electron --enable-unsafe-webgpu --enable-features=Vulkan --use-vulkan=swiftshader --use-webgpu-adapter=swiftshader --no-sandbox test/ci/main.js",
         "docs": "npm run docs:core && npm run docs:physics && npm run docs:media && npm run docs:stats && npm run docs:particle && npm run docs:graphic",