diff --git a/include/openssl/tls1.h b/include/openssl/tls1.h
index 0a3e9e4..937be6b 100644
--- a/include/openssl/tls1.h
+++ b/include/openssl/tls1.h
@@ -217,7 +217,7 @@
 // ExtensionType value from RFC4507
 #define TLSEXT_TYPE_session_ticket 35
 
-// ExtensionType values from draft-ietf-tls-tls13-18
+// ExtensionType values from RFC8446
 #define TLSEXT_TYPE_supported_groups 10
 #define TLSEXT_TYPE_pre_shared_key 41
 #define TLSEXT_TYPE_early_data 42
@@ -431,7 +431,7 @@
 #define TLS1_CK_ECDHE_ECDSA_WITH_CHACHA20_POLY1305_SHA256 0x0300CCA9
 #define TLS1_CK_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256 0x0300CCAC
 
-// TLS 1.3 ciphersuites from draft-ietf-tls-tls13-16
+// TLS 1.3 ciphersuites from RFC 8446.
 #define TLS1_CK_AES_128_GCM_SHA256 0x03001301
 #define TLS1_CK_AES_256_GCM_SHA384 0x03001302
 #define TLS1_CK_CHACHA20_POLY1305_SHA256 0x03001303
@@ -603,7 +603,7 @@
 #define TLS1_TXT_ECDHE_PSK_WITH_CHACHA20_POLY1305_SHA256 \
   "ECDHE-PSK-CHACHA20-POLY1305"
 
-// TLS 1.3 ciphersuites from draft-ietf-tls-tls13-16
+// TLS 1.3 ciphersuites from RFC 8446.
 #define TLS1_TXT_AES_128_GCM_SHA256 "AEAD-AES128-GCM-SHA256"
 #define TLS1_TXT_AES_256_GCM_SHA384 "AEAD-AES256-GCM-SHA384"
 #define TLS1_TXT_CHACHA20_POLY1305_SHA256 "AEAD-CHACHA20-POLY1305-SHA256"