diff --git a/package-lock.json b/package-lock.json
index c15797d2..cb193ff6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -31,8 +31,7 @@
         "@web3auth/base-provider": "^7.3.1",
         "bn.js": "^5.2.1",
         "bowser": "^2.11.0",
-        "elliptic": "^6.5.4",
-        "ts-custom-error": "^3.3.1"
+        "elliptic": "^6.5.4"
       },
       "devDependencies": {
         "@babel/register": "^7.23.7",
diff --git a/package.json b/package.json
index f67a69aa..37ab4958 100644
--- a/package.json
+++ b/package.json
@@ -57,8 +57,7 @@
     "@web3auth/base-provider": "^7.3.1",
     "bn.js": "^5.2.1",
     "bowser": "^2.11.0",
-    "elliptic": "^6.5.4",
-    "ts-custom-error": "^3.3.1"
+    "elliptic": "^6.5.4"
   },
   "devDependencies": {
     "@babel/register": "^7.23.7",
diff --git a/src/helper/errors.ts b/src/helper/errors.ts
index bdb58ddd..6ac174f3 100644
--- a/src/helper/errors.ts
+++ b/src/helper/errors.ts
@@ -1,4 +1,80 @@
-import { CustomError } from "ts-custom-error";
+/**
+ * Fix the prototype chain of the error
+ *
+ * Use Object.setPrototypeOf
+ * Support ES6 environments
+ *
+ * Fallback setting __proto__
+ * Support IE11+, see https://docs.microsoft.com/en-us/scripting/javascript/reference/javascript-version-information
+ */
+function fixProto(target: Error, prototype: object) {
+  const { setPrototypeOf } = Object;
+  if (setPrototypeOf) {
+    setPrototypeOf(target, prototype);
+  } else {
+    // eslint-disable-next-line no-proto, @typescript-eslint/no-explicit-any
+    (target as any).__proto__ = prototype;
+  }
+}
+
+/**
+ * Capture and fix the error stack when available
+ *
+ * Use Error.captureStackTrace
+ * Support v8 environments
+ */
+function fixStack(target: Error, fn = target.constructor) {
+  const { captureStackTrace } = Error;
+  if (captureStackTrace) {
+    captureStackTrace(target, fn);
+  }
+}
+
+// copy from https://github.com/microsoft/TypeScript/blob/main/lib/lib.es2022.error.d.ts
+// avoid typescript isue https://github.com/adriengibrat/ts-custom-error/issues/81
+interface ErrorOptions {
+  cause?: unknown;
+}
+
+/**
+ * Allows to easily extend a base class to create custom applicative errors.
+ *
+ * example:
+ * ```
+ * class HttpError extends CustomError {
+ * 	public constructor(
+ * 		public code: number,
+ * 		message?: string,
+ *      cause?: Error,
+ * 	) {
+ * 		super(message, { cause })
+ * 	}
+ * }
+ *
+ * new HttpError(404, 'Not found')
+ * ```
+ */
+export class CustomError extends Error {
+  name: string;
+
+  constructor(message?: string, options?: ErrorOptions) {
+    super(message, options);
+    // set error name as constructor name, make it not enumerable to keep native Error behavior
+    // see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/new.target#new.target_in_constructors
+    // see https://github.com/adriengibrat/ts-custom-error/issues/30
+    Object.defineProperty(this, "name", {
+      value: new.target.name,
+      enumerable: false,
+      configurable: true,
+    });
+    // fix the extended error prototype chain
+    // because typescript __extends implementation can't
+    // see https://github.com/Microsoft/TypeScript-wiki/blob/master/Breaking-Changes.md#extending-built-ins-like-error-array-and-map-may-no-longer-work
+    fixProto(this, new.target.prototype);
+    // try to remove contructor from stack trace
+    fixStack(this);
+  }
+}
 
 interface ICoreKitError extends CustomError {
   name: string;