diff --git a/packages/workflow/src/AugmentObject.ts b/packages/workflow/src/AugmentObject.ts
index cc6528560..a8b29d066 100644
--- a/packages/workflow/src/AugmentObject.ts
+++ b/packages/workflow/src/AugmentObject.ts
@@ -1,6 +1,24 @@
 import type { IDataObject } from './Interfaces';
 import util from 'util';
 
+function augment<T>(value: T): T {
+	if (
+		typeof value !== 'object' ||
+		value === null ||
+		util.types.isProxy(value) ||
+		value instanceof RegExp
+	)
+		return value;
+
+	if (value instanceof Date) return new Date(value.valueOf()) as T;
+
+	// eslint-disable-next-line @typescript-eslint/no-use-before-define
+	if (Array.isArray(value)) return augmentArray(value) as T;
+
+	// eslint-disable-next-line @typescript-eslint/no-use-before-define
+	return augmentObject(value) as T;
+}
+
 export function augmentArray<T>(data: T[]): T[] {
 	let newData: unknown[] | undefined = undefined;
 
@@ -17,24 +35,12 @@ export function augmentArray<T>(data: T[]): T[] {
 		},
 		get(target, key: string, receiver): unknown {
 			const value = Reflect.get(newData !== undefined ? newData : target, key, receiver) as unknown;
-
-			if (typeof value === 'object') {
-				if (value === null || util.types.isProxy(value)) {
-					return value;
-				}
-
+			const newValue = augment(value);
+			if (newValue !== value) {
 				newData = getData();
-
-				if (Array.isArray(value)) {
-					Reflect.set(newData, key, augmentArray(value));
-				} else {
-					// eslint-disable-next-line @typescript-eslint/no-use-before-define
-					Reflect.set(newData, key, augmentObject(value as IDataObject));
-				}
-
-				return Reflect.get(newData, key);
+				Reflect.set(newData, key, newValue);
+				return newValue;
 			}
-
 			return value;
 		},
 		getOwnPropertyDescriptor(target, key) {
@@ -83,18 +89,13 @@ export function augmentObject<T extends object>(data: T): T {
 
 			// eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
 			const value = Reflect.get(target, key, receiver);
-
-			if (value !== null && typeof value === 'object') {
-				if (Array.isArray(value)) {
-					newData[key] = augmentArray(value);
-				} else {
-					newData[key] = augmentObject(value as IDataObject);
-				}
-
-				return newData[key];
+			const newValue = augment(value);
+			if (newValue !== value) {
+				Object.assign(newData, { [key]: newValue });
+				return newValue;
 			}
 
-			return value as string;
+			return value;
 		},
 		deleteProperty(target, key: string) {
 			if (key in newData) {
diff --git a/packages/workflow/test/AugmentObject.test.ts b/packages/workflow/test/AugmentObject.test.ts
index e038779f1..f30989aec 100644
--- a/packages/workflow/test/AugmentObject.test.ts
+++ b/packages/workflow/test/AugmentObject.test.ts
@@ -193,11 +193,15 @@ describe('AugmentObject', () => {
 
 	describe('augmentObject', () => {
 		test('should work with simple values on first level', () => {
+			const date = new Date(1680089084200);
+			const regexp = new RegExp('^test$', 'ig');
 			const originalObject: IDataObject = {
 				1: 11,
 				2: '22',
 				a: 111,
 				b: '222',
+				d: date,
+				r: regexp,
 			};
 			const copyOriginal = JSON.parse(JSON.stringify(originalObject));
 
@@ -221,7 +225,7 @@ describe('AugmentObject', () => {
 
 			augmentedObject.c = 3;
 
-			expect(originalObject).toEqual(copyOriginal);
+			expect({ ...originalObject, d: date.toJSON(), r: {} }).toEqual(copyOriginal);
 
 			expect(augmentedObject).toEqual({
 				1: 911,
@@ -229,6 +233,8 @@ describe('AugmentObject', () => {
 				a: 9111,
 				b: '9222',
 				c: 3,
+				d: date,
+				r: regexp,
 			});
 		});