diff --git a/src/OcspResponder.Core/OcspResponder.cs b/src/OcspResponder.Core/OcspResponder.cs
index bb80cdc..dd0d491 100644
--- a/src/OcspResponder.Core/OcspResponder.cs
+++ b/src/OcspResponder.Core/OcspResponder.cs
@@ -97,7 +97,7 @@ private async Task<OcspResp> GetOcspDefinitiveResponse(OcspReq ocspRequest, X509
                 signatureAlgorithm,
                 await OcspResponderRepository.GetResponderPrivateKey(issuerCertificate),
                 await OcspResponderRepository.GetChain(issuerCertificate),
-                nextUpdate.UtcDateTime);
+                DateTimeOffset.UtcNow.UtcDateTime);
 
             var ocspResponse = OcspResponseGenerator.Generate(OcspRespStatus.Successful, basicOcspResponse);
             return ocspResponse;
@@ -261,4 +261,4 @@ public OcspResponder(IOcspResponderRepository ocspResponderRepository, IOcspLogg
             Log = logger;
         }
     }
-}
\ No newline at end of file
+}