diff --git a/src/dns/dns.service.spec.ts b/src/dns/dns.service.spec.ts
index 9126e92..a65a1f0 100644
--- a/src/dns/dns.service.spec.ts
+++ b/src/dns/dns.service.spec.ts
@@ -19,10 +19,6 @@ describe('DnsService', () => {
     dnsLookupMock = (dns.lookup as unknown) as jest.Mock;
   });
 
-  it('should be defined', () => {
-    expect(service).toBeDefined();
-  });
-
   it('should return true for a valid URL', async () => {
     dnsLookupMock.mockImplementation((hostname, callback) => callback(null, '1.1.1.1'));
     expect(await service.isValidUrl('http://example.com')).toBe(true);