diff --git a/gnu/packages/guile-xyz.scm b/gnu/packages/guile-xyz.scm
index dbf3c8ee57..a2430b7ea3 100644
--- a/gnu/packages/guile-xyz.scm
+++ b/gnu/packages/guile-xyz.scm
@@ -597,7 +597,7 @@ (define-public guile-syntax-highlight
 highlighting library for GNU Guile.  It can parse code written in various
 programming languages into a simple s-expression that can be converted to
 HTML (via SXML) or any other format for rendering.")
-    (home-page "http://dthompson.us/projects/guile-syntax-highlight.html")
+    (home-page "https://dthompson.us/projects/guile-syntax-highlight.html")
     (license license:lgpl3+)))
 
 (define-public guile3.0-syntax-highlight