diff --git a/npm/ng-packs/packages/core/src/lib/tests/config.state.spec.ts b/npm/ng-packs/packages/core/src/lib/tests/config.state.spec.ts
index 1ff9ad817e..ae98855913 100644
--- a/npm/ng-packs/packages/core/src/lib/tests/config.state.spec.ts
+++ b/npm/ng-packs/packages/core/src/lib/tests/config.state.spec.ts
@@ -7,6 +7,7 @@ import { ABP } from '../models';
 import { Config } from '../models/config';
 import { ApplicationConfigurationService, ConfigStateService } from '../services';
 import { ConfigState } from '../states';
+import { HttpClient } from '@angular/common/http';
 
 export const CONFIG_STATE_DATA = {
   environment: {
@@ -136,19 +137,17 @@ describe('ConfigState', () => {
   let store: SpyObject<Store>;
   let service: ConfigStateService;
   let state: ConfigState;
-  let appConfigService: SpyObject<ApplicationConfigurationService>;
 
   const createService = createServiceFactory({
     service: ConfigStateService,
-    mocks: [ApplicationConfigurationService, Store],
+    mocks: [ApplicationConfigurationService, Store, HttpClient],
   });
 
   beforeEach(() => {
     spectator = createService();
     store = spectator.get(Store);
     service = spectator.service;
-    appConfigService = spectator.get(ApplicationConfigurationService);
-    state = new ConfigState(spectator.get(ApplicationConfigurationService), store);
+    state = new ConfigState(spectator.get(HttpClient), store);
   });
 
   describe('#getAll', () => {
@@ -283,7 +282,7 @@ describe('ConfigState', () => {
   });
 
   describe('#GetAppConfiguration', () => {
-    it('should call the getConfiguration of ApplicationConfigurationService and patch the state', done => {
+    it('should call the app-configuration API and patch the state', done => {
       let patchStateArg;
       let dispatchArg;
 
@@ -299,7 +298,8 @@ describe('ConfigState', () => {
         dispatchArg = a;
         return of(a);
       });
-      appConfigService.getConfiguration.andReturn(res$);
+      const httpClient = spectator.get(HttpClient);
+      httpClient.get.andReturn(res$);
 
       state.addData({ patchState, dispatch } as any).subscribe();
 
diff --git a/npm/ng-packs/packages/core/src/lib/tests/dynamic-layout.component.spec.ts b/npm/ng-packs/packages/core/src/lib/tests/dynamic-layout.component.spec.ts
index 0a123b6a4f..e1a678a19f 100644
--- a/npm/ng-packs/packages/core/src/lib/tests/dynamic-layout.component.spec.ts
+++ b/npm/ng-packs/packages/core/src/lib/tests/dynamic-layout.component.spec.ts
@@ -7,6 +7,7 @@ import { eLayoutType } from '../enums';
 import { ABP } from '../models';
 import { ConfigState, ReplaceableComponentsState } from '../states';
 import { ApplicationConfigurationService } from '../services';
+import { HttpClient } from '@angular/common/http';
 
 @Component({
   selector: 'abp-layout-application',
@@ -92,7 +93,7 @@ describe('DynamicLayoutComponent', () => {
     component: RouterOutletComponent,
     stubsEnabled: false,
     declarations: [DummyComponent, DynamicLayoutComponent],
-    mocks: [ApplicationConfigurationService],
+    mocks: [ApplicationConfigurationService, HttpClient],
     imports: [
       RouterModule,
       DummyLayoutModule,
diff --git a/npm/ng-packs/packages/core/src/lib/tests/localization.service.spec.ts b/npm/ng-packs/packages/core/src/lib/tests/localization.service.spec.ts
index bfd8948318..5600e3aa39 100644
--- a/npm/ng-packs/packages/core/src/lib/tests/localization.service.spec.ts
+++ b/npm/ng-packs/packages/core/src/lib/tests/localization.service.spec.ts
@@ -1,7 +1,7 @@
 import { Router } from '@angular/router';
 import { createServiceFactory, SpectatorService, SpyObject } from '@ngneat/spectator/jest';
-import { Store } from '@ngxs/store';
-import { Observable, of } from 'rxjs';
+import { Store, Actions } from '@ngxs/store';
+import { Observable, of, Subject } from 'rxjs';
 import { LocalizationService } from '../services/localization.service';
 
 describe('LocalizationService', () => {
@@ -13,6 +13,7 @@ describe('LocalizationService', () => {
     service: LocalizationService,
     entryComponents: [],
     mocks: [Store, Router],
+    providers: [{ provide: Actions, useValue: new Subject() }],
   });
 
   beforeEach(() => {
@@ -74,7 +75,7 @@ describe('LocalizationService', () => {
 
     it('should throw an error message when service have an otherInstance', async () => {
       try {
-        const instance = new LocalizationService(null, null, null, {} as any);
+        const instance = new LocalizationService(new Subject(), null, null, null, {} as any);
       } catch (error) {
         expect((error as Error).message).toBe('LocalizationService should have only one instance.');
       }
diff --git a/npm/ng-packs/packages/core/src/lib/tests/session.state.spec.ts b/npm/ng-packs/packages/core/src/lib/tests/session.state.spec.ts
index cdf616e5d2..8a7953dd16 100644
--- a/npm/ng-packs/packages/core/src/lib/tests/session.state.spec.ts
+++ b/npm/ng-packs/packages/core/src/lib/tests/session.state.spec.ts
@@ -25,7 +25,7 @@ describe('SessionState', () => {
 
   beforeEach(() => {
     spectator = createService();
-    state = new SessionState(spectator.get(LocalizationService), null, null, new Subject());
+    state = new SessionState(null, null, new Subject());
   });
 
   describe('#getLanguage', () => {
@@ -49,13 +49,11 @@ describe('SessionState', () => {
         dispatchedData = action;
         return of({});
       });
-      const spy = jest.spyOn(spectator.get(LocalizationService), 'registerLocale');
 
       state.setLanguage({ patchState, dispatch } as any, { payload: 'en' }).subscribe();
 
       expect(patchedData).toEqual({ language: 'en' });
       expect(dispatchedData instanceof GetAppConfiguration).toBeTruthy();
-      expect(spy).toHaveBeenCalledWith('en');
     });
   });