diff --git a/packages/temporal-polyfill/package.json b/packages/temporal-polyfill/package.json
index 22b10942..794f74bd 100644
--- a/packages/temporal-polyfill/package.json
+++ b/packages/temporal-polyfill/package.json
@@ -22,7 +22,7 @@
     "directory": "packages/temporal-polyfill"
   },
   "scripts": {
-    "build": "pnpm run bundle:clean && pnpm run pkg-json && pnpm run tsc && pnpm run type-overrides && pnpm run bundle",
+    "build": "pnpm run bundle:clean && pnpm run pkg-json && pnpm run tsc && pnpm run type-overrides && pnpm run bundle && pnpm run readme",
     "dev": "pnpm run bundle:clean && pnpm run pkg-json && pnpm run tsc && pnpm run type-overrides && concurrently --prefix-colors green npm:tsc:dev npm:bundle:dev",
     "tsc": "tsc --build",
     "tsc:dev": "tsc --build --watch --pretty",
@@ -35,8 +35,9 @@
     "pkg-json:clean": "rm -rf dist/package.json",
     "test": "./scripts/test.js",
     "lint": "eslint .",
+    "readme": "cp ../../README.md dist",
     "clean": "pnpm run tsc:clean && pnpm run bundle:clean && pnpm run pkg-json:clean",
-    "size": "gzip-size --include-original dist/global.min.js && pnpm export-size ./dist"
+    "size": "gzip-size --include-original --raw dist/global.min.js && pnpm export-size ./dist"
   },
   "type": "module",
   "buildConfig": {
@@ -53,7 +54,7 @@
     "linkDirectory": true
   },
   "dependencies": {
-    "temporal-spec": "~0.2.0"
+    "temporal-spec": "^0.2.0"
   },
   "devDependencies": {
     "@js-temporal/temporal-test262-runner": "workspace:*",