diff --git a/lib/esbuild.config.js b/lib/esbuild.config.js
index c4b0c55..571b433 100644
--- a/lib/esbuild.config.js
+++ b/lib/esbuild.config.js
@@ -2,7 +2,7 @@ import path, { resolve } from 'path';
 import { fileURLToPath } from 'url';
 
 import { build, context, analyzeMetafile } from 'esbuild';
-import * as dotenv from 'dotenv'
+import * as dotenv from 'dotenv';
 
 const __filename = fileURLToPath(import.meta.url);
 const __dirname = path.dirname(__filename);
@@ -13,7 +13,7 @@ const SRC = resolve(__dirname, 'src');
 
 dotenv.config({
   path: `${ROOT}/.env`
-})
+});
 
 const BUILD = process.env.BUILD || 'production';
 const DEBUG = process.env.DEBUG === 'true';
@@ -27,7 +27,7 @@ const config = {
   external: ['@hcaptcha/types'],
   tsconfig: 'tsconfig.json',
   define: {
-      'process.env.SENTRY_DSN_TOKEN': JSON.stringify(SENTRY),
+    'process.env.SENTRY_DSN_TOKEN': JSON.stringify(SENTRY),
 
   },
 
@@ -46,36 +46,42 @@ const config = {
 
 
 if (WATCH) {
-    const ctx = await context({
-        ...config,
-        format: 'esm',
-        outfile: resolve(DIST, 'index.mjs'),
-        treeShaking: true
-    });
-    await ctx.watch();
+  const ctx = await context({
+    ...config,
+    format: 'esm',
+    outfile: resolve(DIST, 'index.mjs'),
+    treeShaking: true,
+    target: [
+      'es6'
+    ]
+  });
+  await ctx.watch();
 } else {
-    const resultESM = await build({
-        ...config,
-        format: 'esm',
-        outfile: resolve(DIST, 'index.mjs'),
-        treeShaking: true
-    });
+  const resultESM = await build({
+    ...config,
+    format: 'esm',
+    outfile: resolve(DIST, 'index.mjs'),
+    treeShaking: true,
+    target: [
+      'es6'
+    ]
+  });
 
-    const resultCJS = await build({
-        ...config,
-        format: 'cjs',
-        outfile: resolve(DIST, 'index.cjs'),
-        treeShaking: true
-    });
+  const resultCJS = await build({
+    ...config,
+    format: 'cjs',
+    outfile: resolve(DIST, 'index.cjs'),
+    treeShaking: true
+  });
 
-    if (DEBUG) {
-        const analyzeESM = await analyzeMetafile(resultESM.metafile, {
-            verbose: false
-        });
-        const analyzeCJS = await analyzeMetafile(resultCJS.metafile, {
-            verbose: false
-        });
-        console.log(analyzeESM);
-        console.log(analyzeCJS);
-    }
+  if (DEBUG) {
+    const analyzeESM = await analyzeMetafile(resultESM.metafile, {
+      verbose: false
+    });
+    const analyzeCJS = await analyzeMetafile(resultCJS.metafile, {
+      verbose: false
+    });
+    console.log(analyzeESM);
+    console.log(analyzeCJS);
+  }
 }
diff --git a/package.json b/package.json
index bb0a04c..2d5d858 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@hcaptcha/loader",
   "description": "This is a JavaScript library to easily configure the loading of the hCaptcha JS client SDK with built-in error handling.",
-  "version": "1.1.2",
+  "version": "1.1.3",
   "author": "hCaptcha team and contributors",
   "license": "MIT",
   "keywords": [