diff --git a/services/credentials-service/src/app.module.ts b/services/credentials-service/src/app.module.ts
index 13e59c4fa..96807f7f0 100644
--- a/services/credentials-service/src/app.module.ts
+++ b/services/credentials-service/src/app.module.ts
@@ -1,10 +1,10 @@
-import { HttpModule, HttpService } from '@nestjs/axios';
+import { HttpModule } from '@nestjs/axios';
 import { Module } from '@nestjs/common';
 import { ConfigModule, ConfigService } from '@nestjs/config';
 import { AppController } from './app.controller';
 import { AppService } from './app.service';
 import { CredentialsModule } from './credentials/credentials.module';
-import { HealthCheckService, TerminusModule } from '@nestjs/terminus';
+import { TerminusModule } from '@nestjs/terminus';
 import { HealthCheckUtilsService } from './credentials/utils/healthcheck.utils.service';
 import { PrismaClient } from '@prisma/client';
 import { RevocationList } from './revocation-list/revocation-list.helper';
@@ -21,6 +21,6 @@ import { RevocationListModule } from './revocation-list/revocation-list.module';
     RevocationListModule,
   ],
   controllers: [AppController],
-  providers: [HttpService, HealthCheckService, AppService, ConfigService, PrismaClient, HealthCheckUtilsService, RevocationList, RevocationListImpl, RevocationListService],
+  providers: [ AppService, ConfigService, PrismaClient, HealthCheckUtilsService, RevocationList, RevocationListImpl, RevocationListService],
 })
 export class AppModule {}
diff --git a/services/credentials-service/src/credentials/credentials.module.ts b/services/credentials-service/src/credentials/credentials.module.ts
index 9c34c0912..43530bd68 100644
--- a/services/credentials-service/src/credentials/credentials.module.ts
+++ b/services/credentials-service/src/credentials/credentials.module.ts
@@ -1,7 +1,7 @@
 import { Module } from '@nestjs/common';
 import { CredentialsService } from './credentials.service';
 import { CredentialsController } from './credentials.controller';
-import { HttpModule, HttpService } from '@nestjs/axios';
+import { HttpModule } from '@nestjs/axios';
 import { IdentityUtilsService } from './utils/identity.utils.service';
 import { RenderingUtilsService } from './utils/rendering.utils.service';
 import { SchemaUtilsSerivce } from './utils/schema.utils.service';
@@ -9,7 +9,7 @@ import { PrismaClient } from '@prisma/client';
 
 @Module({
   imports: [HttpModule],
-  providers: [HttpService, CredentialsService, PrismaClient, IdentityUtilsService, RenderingUtilsService, SchemaUtilsSerivce],
+  providers: [CredentialsService, PrismaClient, IdentityUtilsService, RenderingUtilsService, SchemaUtilsSerivce],
   controllers: [CredentialsController],
   exports: [IdentityUtilsService]
 })
diff --git a/services/credentials-service/src/credentials/utils/rendering.utils.service.ts b/services/credentials-service/src/credentials/utils/rendering.utils.service.ts
index 296487d0b..be29b927b 100644
--- a/services/credentials-service/src/credentials/utils/rendering.utils.service.ts
+++ b/services/credentials-service/src/credentials/utils/rendering.utils.service.ts
@@ -5,9 +5,9 @@ import {
 } from '@nestjs/common';
 import { W3CCredential } from 'vc.types';
 import { JwtCredentialSubject } from 'src/app.interface';
-import * as wkhtmltopdf from 'wkhtmltopdf';
+import wkhtmltopdf from 'wkhtmltopdf';
 import { compile } from 'handlebars';
-import * as QRCode from 'qrcode';
+import QRCode from 'qrcode';
 import JSZip from 'jszip';
 
 @Injectable()