diff --git a/barretenberg/ts/src/barretenberg_wasm/helpers/browser/index.ts b/barretenberg/ts/src/barretenberg_wasm/helpers/browser/index.ts
index d66fae16dc7..7803f9eb9a5 100644
--- a/barretenberg/ts/src/barretenberg_wasm/helpers/browser/index.ts
+++ b/barretenberg/ts/src/barretenberg_wasm/helpers/browser/index.ts
@@ -1,7 +1,7 @@
 import { wrap } from 'comlink';
 
 export function getSharedMemoryAvailable() {
-  const globalScope = typeof window !== 'undefined' ? window : self;
+  const globalScope = typeof window !== 'undefined' ? window : globalThis;
   return typeof SharedArrayBuffer !== 'undefined' && globalScope.crossOriginIsolated;
 }
 
diff --git a/barretenberg/ts/src/random/browser/index.ts b/barretenberg/ts/src/random/browser/index.ts
index 70d10d9f953..a79116d40a3 100644
--- a/barretenberg/ts/src/random/browser/index.ts
+++ b/barretenberg/ts/src/random/browser/index.ts
@@ -1,7 +1,7 @@
 export const randomBytes = (len: number) => {
   const getWebCrypto = () => {
     if (typeof window !== 'undefined' && window.crypto) return window.crypto;
-    if (typeof self !== 'undefined' && self.crypto) return self.crypto;
+    if (typeof globalThis !== 'undefined' && globalThis.crypto) return globalThis.crypto;
     return undefined;
   };
 
diff --git a/barretenberg/ts/webpack.config.js b/barretenberg/ts/webpack.config.js
index 02e509f256b..757b3db7212 100644
--- a/barretenberg/ts/webpack.config.js
+++ b/barretenberg/ts/webpack.config.js
@@ -39,6 +39,7 @@ export default {
     path: resolve(dirname(fileURLToPath(import.meta.url)), './dest/browser'),
     filename: 'index.js',
     module: true,
+    globalObject: 'globalThis',
     library: {
       type: 'module',
     },