diff --git a/lib/content-services/src/lib/testing/content.testing.module.ts b/lib/content-services/src/lib/testing/content.testing.module.ts
index b2816891cf..52eb3e3f0e 100644
--- a/lib/content-services/src/lib/testing/content.testing.module.ts
+++ b/lib/content-services/src/lib/testing/content.testing.module.ts
@@ -15,7 +15,7 @@
  * limitations under the License.
  */
 
-import { NgModule, inject, provideAppInitializer } from '@angular/core';
+import { NgModule, APP_INITIALIZER } from '@angular/core';
 import { NoopAnimationsModule } from '@angular/platform-browser/animations';
 import { CoreModule, NoopTranslateModule, NoopAuthModule } from '@alfresco/adf-core';
 import { ContentModule } from '../content.module';
@@ -29,10 +29,12 @@ import { AlfrescoApiServiceMock } from '../mock';
     imports: [NoopAnimationsModule, CoreModule, NoopAuthModule, NoopTranslateModule, ContentModule, MatIconTestingModule],
     providers: [
         { provide: AlfrescoApiService, useClass: AlfrescoApiServiceMock },
-        provideAppInitializer(() => {
-            const initializerFn = versionCompatibilityFactory(inject(VersionCompatibilityService));
-            return initializerFn();
-        })
+        {
+            provide: APP_INITIALIZER,
+            useFactory: versionCompatibilityFactory,
+            deps: [VersionCompatibilityService],
+            multi: true
+        }
     ],
     exports: [NoopAnimationsModule, CoreModule, ContentModule]
 })