diff --git a/acme/api/renewal.go b/acme/api/renewal.go
index 7a5c5985c7..5b4046c69e 100644
--- a/acme/api/renewal.go
+++ b/acme/api/renewal.go
@@ -3,8 +3,6 @@ package api
 import (
 	"errors"
 	"net/http"
-
-	"github.com/go-acme/lego/v4/acme"
 )
 
 // ErrNoARI is returned when the server does not advertise a renewal info endpoint.
@@ -28,26 +26,3 @@ func (c *CertificateService) GetRenewalInfo(certID string) (*http.Response, erro
 
 	return c.core.HTTPClient.Get(c.core.GetDirectory().RenewalInfo + "/" + certID)
 }
-
-// UpdateRenewalInfo POSTs updated renewal information for a certificate to the renewalInfo endpoint.
-// This is used to indicate that a certificate has been replaced.
-//
-// Note: this endpoint is part of a draft specification, not all ACME servers will implement it.
-// This method will return api.ErrNoARI if the server does not advertise a renewal info endpoint.
-//
-// https://datatracker.ietf.org/doc/draft-ietf-acme-ari
-func (c *CertificateService) UpdateRenewalInfo(req acme.RenewalInfoUpdateRequest) (*http.Response, error) {
-	if c.core.GetDirectory().RenewalInfo == "" {
-		return nil, ErrNoARI
-	}
-
-	if req.CertID == "" {
-		return nil, errors.New("renewalInfo[post]: 'certID' cannot be empty")
-	}
-
-	if !req.Replaced {
-		return nil, errors.New("renewalInfo[post]: 'replaced' cannot be false")
-	}
-
-	return c.core.post(c.core.GetDirectory().RenewalInfo, req, nil)
-}