diff --git a/apps/backend/src/app/authors/authors.module.ts b/apps/backend/src/app/authors/authors.module.ts
index 9482e37..75adad6 100644
--- a/apps/backend/src/app/authors/authors.module.ts
+++ b/apps/backend/src/app/authors/authors.module.ts
@@ -1,8 +1,11 @@
 import { Module } from "@nestjs/common";
 import { AuthorsController } from "apps/backend/src/app/authors/authors.controller";
 import { AuthorsService } from "apps/backend/src/app/authors/authors.service";
+import { CredentialsModule } from "apps/backend/src/app/credentials/credentials.module";
+import { DbModule } from "apps/backend/src/app/db/db.module";
 
 @Module({
+	imports: [DbModule, CredentialsModule],
 	controllers: [AuthorsController],
 	providers: [AuthorsService],
 })
diff --git a/apps/backend/src/app/groups/groups.module.ts b/apps/backend/src/app/groups/groups.module.ts
index ea277f3..57407f6 100644
--- a/apps/backend/src/app/groups/groups.module.ts
+++ b/apps/backend/src/app/groups/groups.module.ts
@@ -1,10 +1,11 @@
 import { Module } from "@nestjs/common";
+import { CredentialsModule } from "apps/backend/src/app/credentials/credentials.module";
 import { DbModule } from "../db/db.module";
 import { GroupsController } from "./groups.controller";
 import { GroupsService } from "./groups.service";
 
 @Module({
-	imports: [DbModule],
+	imports: [DbModule, CredentialsModule],
 	controllers: [GroupsController],
 	providers: [GroupsService],
 })