diff --git a/packages/linkify-react/src/linkify-react.mjs b/packages/linkify-react/src/linkify-react.mjs
index b55d596..05fd050 100644
--- a/packages/linkify-react/src/linkify-react.mjs
+++ b/packages/linkify-react/src/linkify-react.mjs
@@ -1,5 +1,5 @@
 import * as React from 'react';
-import { tokenize, Options, options } from 'linkifyjs';
+import { tokenize, Options } from 'linkifyjs';
 
 /**
  * Given a string, converts to an array of valid React components
@@ -10,7 +10,6 @@ import { tokenize, Options, options } from 'linkifyjs';
  * @returns {React.ReactNodeArray}
  */
 function stringToElements(str, opts, meta) {
-
 	const tokens = tokenize(str);
 	const elements = [];
 
@@ -28,7 +27,7 @@ function stringToElements(str, opts, meta) {
 			if (!('key' in rendered.props)) {
 				// Ensure generated element has unique key
 				const key = `__linkify-el-${meta.elementId++}`;
-				const props = options.assign({ key }, rendered.props);
+				const props = Object.assign({ key }, rendered.props);
 				rendered = React.cloneElement(rendered, props);
 			}
 			elements.push(rendered);
@@ -60,9 +59,7 @@ function linkifyReactElement(element, opts, meta) {
 			// ensure that we always generate unique element IDs for keys
 			children.push.apply(children, stringToElements(child, opts, meta));
 		} else if (React.isValidElement(child)) {
-			if (typeof child.type === 'string'
-				&& opts.ignoreTags.indexOf(child.type.toUpperCase()) >= 0
-			) {
+			if (typeof child.type === 'string' && opts.ignoreTags.indexOf(child.type.toUpperCase()) >= 0) {
 				// Don't linkify this element
 				children.push(child);
 			} else {
@@ -76,7 +73,7 @@ function linkifyReactElement(element, opts, meta) {
 
 	// Set a default unique key, copy over remaining props
 	const key = `__linkify-el-${meta.elementId++}`;
-	const newProps = options.assign({ key }, element.props);
+	const newProps = Object.assign({ key }, element.props);
 	return React.cloneElement(element, newProps, children);
 }
 
diff --git a/packages/linkifyjs/src/assign.mjs b/packages/linkifyjs/src/assign.mjs
deleted file mode 100644
index 32813af..0000000
--- a/packages/linkifyjs/src/assign.mjs
+++ /dev/null
@@ -1,15 +0,0 @@
-/**
- * @template A
- * @template B
- * @param {A} target
- * @param {B} properties
- * @return {A & B}
- */
-const assign = (target, properties) => {
-	for (const key in properties) {
-		target[key] = properties[key];
-	}
-	return target;
-};
-
-export default assign;
diff --git a/packages/linkifyjs/src/fsm.mjs b/packages/linkifyjs/src/fsm.mjs
index 02f954f..398afb3 100644
--- a/packages/linkifyjs/src/fsm.mjs
+++ b/packages/linkifyjs/src/fsm.mjs
@@ -1,7 +1,6 @@
 /**
  * Finite State Machine generation utilities
  */
-import assign from './assign.mjs';
 
 /**
  * @template T
@@ -273,7 +272,7 @@ State.prototype = {
 			templateState = state.go(input);
 		if (templateState) {
 			nextState = new State();
-			assign(nextState.j, templateState.j);
+			Object.assign(nextState.j, templateState.j);
 			nextState.jr.push.apply(nextState.jr, templateState.jr);
 			nextState.jd = templateState.jd;
 			nextState.t = templateState.t;
@@ -285,7 +284,7 @@ State.prototype = {
 			// Ensure newly token is in the same groups as the old token
 			if (groups) {
 				if (nextState.t && typeof nextState.t === 'string') {
-					const allFlags = assign(flagsForToken(nextState.t, groups), flags);
+					const allFlags = Object.assign(flagsForToken(nextState.t, groups), flags);
 					addToGroups(t, allFlags, groups);
 				} else if (flags) {
 					addToGroups(t, flags, groups);
diff --git a/packages/linkifyjs/src/multi.mjs b/packages/linkifyjs/src/multi.mjs
index 329bf8c..6d40bef 100644
--- a/packages/linkifyjs/src/multi.mjs
+++ b/packages/linkifyjs/src/multi.mjs
@@ -1,6 +1,5 @@
 import { COLON, LOCALHOST } from './text.mjs';
 import { defaults } from './options.mjs';
-import assign from './assign.mjs';
 
 /******************************************************************************
 	Multi-Tokens
@@ -163,7 +162,7 @@ MultiToken.prototype = {
 			attributes.rel = rel;
 		}
 		if (attrs) {
-			assign(attributes, attrs);
+			Object.assign(attributes, attrs);
 		}
 
 		return { tagName, attributes, content, eventListeners };
diff --git a/packages/linkifyjs/src/options.mjs b/packages/linkifyjs/src/options.mjs
index 9921b61..5604314 100644
--- a/packages/linkifyjs/src/options.mjs
+++ b/packages/linkifyjs/src/options.mjs
@@ -1,5 +1,3 @@
-import assign from './assign.mjs';
-
 /**
  * An object where each key is a valid DOM Event Name such as `click` or `focus`
  * and each value is an event handler function.
@@ -109,9 +107,9 @@ export const defaults = {
  *   Similar to render option
  */
 export function Options(opts, defaultRender = null) {
-	let o = assign({}, defaults);
+	let o = Object.assign({}, defaults);
 	if (opts) {
-		o = assign(o, opts instanceof Options ? opts.o : opts);
+		o = Object.assign(o, opts instanceof Options ? opts.o : opts);
 	}
 
 	// Ensure all ignored tags are uppercase
@@ -214,8 +212,6 @@ Options.prototype = {
 	},
 };
 
-export { assign };
-
 function noop(val) {
 	return val;
 }
diff --git a/packages/linkifyjs/src/scanner.mjs b/packages/linkifyjs/src/scanner.mjs
index 964b1e1..0b4988c 100644
--- a/packages/linkifyjs/src/scanner.mjs
+++ b/packages/linkifyjs/src/scanner.mjs
@@ -8,7 +8,6 @@ import { State, addToGroups, tr, ts, tt } from './fsm.mjs';
 import * as fsm from './fsm.mjs';
 import * as tk from './text.mjs';
 import * as re from './regexp.mjs';
-import assign from './assign.mjs';
 
 const CR = '\r'; // carriage-return character
 const LF = '\n'; // line-feed character
@@ -203,7 +202,7 @@ export function init(customSchemes = []) {
 
 	// Set default transition for start state (some symbol)
 	Start.jd = new State(tk.SYM);
-	return { start: Start, tokens: assign({ groups }, tk) };
+	return { start: Start, tokens: Object.assign({ groups }, tk) };
 }
 
 /**