diff --git a/docs/HSTS.md b/docs/HSTS.md
index c3f08393c4..f63cfe3230 100644
--- a/docs/HSTS.md
+++ b/docs/HSTS.md
@@ -1,7 +1,7 @@
 # HSTS support
 
-curl features **EXPERIMENTAL** support for the Strict-Transport-Security: HTTP
-header. Added in curl 7.74.0
+HTTP Strict-Transport-Security. Added as experimental in curl
+7.74.0. Supported "for real" since 7.77.0.
 
 ## Standard