diff --git a/packages/classes/src/lib/utils/index.ts b/packages/classes/src/lib/utils/index.ts
index 8d577f8b3..378040a0d 100644
--- a/packages/classes/src/lib/utils/index.ts
+++ b/packages/classes/src/lib/utils/index.ts
@@ -1,4 +1,2 @@
 export * from './instantiate.util';
-export * from './is-primitive-constructor.util';
-export * from './is-date-constructor.util';
 export * from './is-class.util';
diff --git a/packages/classes/src/lib/utils/instantiate.util.ts b/packages/classes/src/lib/utils/instantiate.util.ts
index 4fd8d2bd1..f166d6b01 100644
--- a/packages/classes/src/lib/utils/instantiate.util.ts
+++ b/packages/classes/src/lib/utils/instantiate.util.ts
@@ -1,9 +1,12 @@
-import { isDefined, isEmpty } from '@automapper/core';
+import {
+  isDateConstructor,
+  isDefined,
+  isEmpty,
+  isPrimitiveConstructor,
+} from '@automapper/core';
 import type { Dictionary } from '@automapper/types';
 import type { ClassInstanceStorage, ClassMetadataStorage } from '../storages';
 import type { Constructible } from '../types';
-import { isDateConstructor } from './is-date-constructor.util';
-import { isPrimitiveConstructor } from './is-primitive-constructor.util';
 
 /**
  * Recursively instantiate a model with its metadata
diff --git a/packages/classes/src/lib/utils/is-date-constructor.util.ts b/packages/classes/src/lib/utils/is-date-constructor.util.ts
deleted file mode 100644
index 9d1e56f89..000000000
--- a/packages/classes/src/lib/utils/is-date-constructor.util.ts
+++ /dev/null
@@ -1,8 +0,0 @@
-/**
- * Check if value is a Date constructor
- *
- * @param {Function} value
- */
-export function isDateConstructor(value: unknown): boolean {
-  return value === Date;
-}
diff --git a/packages/classes/src/lib/utils/is-primitive-constructor.util.ts b/packages/classes/src/lib/utils/is-primitive-constructor.util.ts
deleted file mode 100644
index ec9285ca9..000000000
--- a/packages/classes/src/lib/utils/is-primitive-constructor.util.ts
+++ /dev/null
@@ -1,10 +0,0 @@
-/**
- * Check if value is a String/Number/Boolean constructor
- *
- * @param {Function} value
- */
-export function isPrimitiveConstructor(value: unknown): boolean {
-  return (
-    value === String || value === Number || value === Boolean || value === Array
-  );
-}
diff --git a/packages/classes/src/lib/utils/specs/is-date-constructor.util.spec.ts b/packages/classes/src/lib/utils/specs/is-date-constructor.util.spec.ts
deleted file mode 100644
index fa7517c18..000000000
--- a/packages/classes/src/lib/utils/specs/is-date-constructor.util.spec.ts
+++ /dev/null
@@ -1,9 +0,0 @@
-import { isDateConstructor } from '../is-date-constructor.util';
-
-describe('isDateConstructor', () => {
-  it('should work', () => {
-    expect(isDateConstructor(Date)).toEqual(true);
-    expect(isDateConstructor(String)).toEqual(false);
-    expect(isDateConstructor(Number)).toEqual(false);
-  });
-});
diff --git a/packages/classes/src/lib/utils/specs/is-primitive-constructor.util.spec.ts b/packages/classes/src/lib/utils/specs/is-primitive-constructor.util.spec.ts
deleted file mode 100644
index 9be0ef551..000000000
--- a/packages/classes/src/lib/utils/specs/is-primitive-constructor.util.spec.ts
+++ /dev/null
@@ -1,11 +0,0 @@
-import { isPrimitiveConstructor } from '../is-primitive-constructor.util';
-
-describe('isPrimitiveConstructor', () => {
-  it('should work', () => {
-    expect(isPrimitiveConstructor(String)).toEqual(true);
-    expect(isPrimitiveConstructor(Number)).toEqual(true);
-    expect(isPrimitiveConstructor(Boolean)).toEqual(true);
-    expect(isPrimitiveConstructor(Array)).toEqual(true);
-    expect(isPrimitiveConstructor(Date)).toEqual(false);
-  });
-});