diff --git a/packages/core/content-manager/server/services/__tests__/field-sizes.test.js b/packages/core/content-manager/server/services/__tests__/field-sizes.test.js
index caa8a90eee..0b4e5d3780 100644
--- a/packages/core/content-manager/server/services/__tests__/field-sizes.test.js
+++ b/packages/core/content-manager/server/services/__tests__/field-sizes.test.js
@@ -1,5 +1,6 @@
 'use strict';
 
+const { ApplicationError } = require('@strapi/utils').errors;
 const createFieldSizesService = require('../field-sizes');
 
 const strapi = {
@@ -46,14 +47,24 @@ describe('field sizes service', () => {
 
   it('should throw an error if the type is not found', () => {
     const { getFieldSize } = createFieldSizesService({ strapi });
-    expect(() => getFieldSize('not-found')).toThrowError(
-      'Could not find field size for type not-found'
-    );
+
+    try {
+      getFieldSize('not-found');
+    } catch (error) {
+      expect(error instanceof ApplicationError).toBe(true);
+      expect(error.message).toBe('Could not find field size for type not-found');
+    }
   });
 
   it('should throw an error if the type is not provided', () => {
     const { getFieldSize } = createFieldSizesService({ strapi });
-    expect(() => getFieldSize()).toThrowError('The type is required');
+
+    try {
+      getFieldSize();
+    } catch (error) {
+      expect(error instanceof ApplicationError).toBe(true);
+      expect(error.message).toBe('The type is required');
+    }
   });
 
   it('should set the custom fields input sizes', () => {
diff --git a/packages/core/content-manager/server/services/field-sizes.js b/packages/core/content-manager/server/services/field-sizes.js
index 2d4487d812..6f87781f45 100644
--- a/packages/core/content-manager/server/services/field-sizes.js
+++ b/packages/core/content-manager/server/services/field-sizes.js
@@ -1,5 +1,7 @@
 'use strict';
 
+const { ApplicationError } = require('@strapi/utils').errors;
+
 const needsFullSize = {
   default: 12,
   isResizable: false,
@@ -52,12 +54,12 @@ const createFieldSizesService = ({ strapi }) => {
 
     getFieldSize(type) {
       if (!type) {
-        throw new Error('The type is required');
+        throw new ApplicationError('The type is required');
       }
 
       const fieldSize = fieldSizes[type];
       if (!fieldSize) {
-        throw new Error(`Could not find field size for type ${type}`);
+        throw new ApplicationError(`Could not find field size for type ${type}`);
       }
 
       return fieldSize;
@@ -65,11 +67,11 @@ const createFieldSizesService = ({ strapi }) => {
 
     setFieldSize(type, size) {
       if (!type) {
-        throw new Error('The type is required');
+        throw new ApplicationError('The type is required');
       }
 
       if (!size) {
-        throw new Error('The size is required');
+        throw new ApplicationError('The size is required');
       }
 
       fieldSizes[type] = size;