diff --git a/redfish/managers/test_certificate.robot b/redfish/managers/test_certificate.robot
index 4f62eb4..e9f7fd8 100644
--- a/redfish/managers/test_certificate.robot
+++ b/redfish/managers/test_certificate.robot
@@ -130,7 +130,7 @@
     ...  CertificateType=PEM  CertificateUri=${certificate_dict}
 
     ${resp}=  redfish.Post  /redfish/v1/CertificateService/Actions/CertificateService.ReplaceCertificate
-    ...  body=${payload}
+    ...  body=${payload}  valid_status_codes=[${HTTP_OK}, ${HTTP_NO_CONTENT}]
 
     Wait Until Keyword Succeeds  2 mins  15 secs  Verify Certificate Visible Via OpenSSL  ${cert_file_path}