diff --git a/accept/accept.go b/accept/accept.go
index fe33491..3d13c20 100644
--- a/accept/accept.go
+++ b/accept/accept.go
@@ -529,7 +529,7 @@ func (a *Acceptor) SetTLS(certFile, keyFile string) error {
 		}
 		a.tlsConfig = &tls.Config{
 			Certificates: []tls.Certificate{cert},
-			MinVersion:   tls.VersionTLS12,
+			MinVersion:   tls.VersionTLS13,
 			CipherSuites: []uint16{
 				tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
 				tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,
@@ -553,7 +553,7 @@ func (a *Acceptor) SetTLS(certFile, keyFile string) error {
 	}
 	a.tlsConfig = &tls.Config{
 		Certificates: []tls.Certificate{cert},
-		MinVersion:   tls.VersionTLS12,
+		MinVersion:   tls.VersionTLS13,
 		CipherSuites: []uint16{
 			tls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
 			tls.TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,