diff --git a/doc/testssl.1 b/doc/testssl.1
index 24a5408..3d1bd53 100644
--- a/doc/testssl.1
+++ b/doc/testssl.1
@@ -824,6 +824,9 @@ RFC 8143: Using Transport Layer Security (TLS) with Network News Transfer Protoc
 RFC 8446: The Transport Layer Security (TLS) Protocol Version 1\.3
 .
 .IP "\(bu" 4
+RFC 8701: Applying Generate Random Extensions And Sustain Extensibility (GREASE) to TLS Extensibility
+.
+.IP "\(bu" 4
 W3C CSP: Content Security Policy Level 1\-3
 .
 .IP "\(bu" 4
diff --git a/doc/testssl.1.html b/doc/testssl.1.html
index 9278e3a..c5e9de3 100644
--- a/doc/testssl.1.html
+++ b/doc/testssl.1.html
@@ -593,6 +593,7 @@ This is to prevent giving out a misleading or wrong grade.</p>
 <li>RFC 7919: Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security</li>
 <li>RFC 8143: Using Transport Layer Security (TLS) with Network News Transfer Protocol (NNTP)</li>
 <li>RFC 8446: The Transport Layer Security (TLS) Protocol Version 1.3</li>
+<li>RFC 8701: Applying Generate Random Extensions And Sustain Extensibility (GREASE) to TLS Extensibility</li>
 <li>W3C CSP: Content Security Policy Level 1-3</li>
 <li>TLSWG Draft: The Transport Layer Security (TLS) Protocol Version 1.3</li>
 </ul>
diff --git a/doc/testssl.1.md b/doc/testssl.1.md
index 73544d2..30e07aa 100644
--- a/doc/testssl.1.md
+++ b/doc/testssl.1.md
@@ -491,6 +491,7 @@ Please note that for plain TLS-encrypted ports you must not specify the protocol
 * RFC 7919: Negotiated Finite Field Diffie-Hellman Ephemeral Parameters for Transport Layer Security
 * RFC 8143: Using Transport Layer Security (TLS) with Network News Transfer Protocol (NNTP)
 * RFC 8446: The Transport Layer Security (TLS) Protocol Version 1.3
+* RFC 8701: Applying Generate Random Extensions And Sustain Extensibility (GREASE) to TLS Extensibility
 * W3C CSP: Content Security Policy Level 1-3
 * TLSWG Draft: The Transport Layer Security (TLS) Protocol Version 1.3