diff --git a/package.json b/package.json
index 9f5414a..0e6c884 100644
--- a/package.json
+++ b/package.json
@@ -4,12 +4,15 @@
 	"main": "dist/index.js",
 	"typings": "dist/index.d.ts",
 	"scripts": {
+		"prepublishOnly": "tsc",
 		"test": "parcel -d public ./test/index.html",
 		"build": "tsc -w",
 		"dev": "pnpm run build & pnpm run test"
 	},
 	"browserslist": [
-		"last 1 year"
+		"last 2 Chrome versions",
+		"last 2 Firefox versions",
+		"last 2 Safari versions"
 	],
 	"devDependencies": {
 		"@types/react": "^16.9.3",
diff --git a/tsconfig.json b/tsconfig.json
index 348bde8..98245cd 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,6 +1,6 @@
 {
 	"compilerOptions": {
-		"target": "es5",
+		"target": "es2017",
 		"module": "commonjs",
 		"jsx": "react",
 		"outDir": "./dist",