diff --git a/gnu/packages/games.scm b/gnu/packages/games.scm
index 8c38f3aa98..14b6868a0e 100644
--- a/gnu/packages/games.scm
+++ b/gnu/packages/games.scm
@@ -4014,7 +4014,7 @@ (define-public unknown-horizons
        ("python-polib" ,python-polib)
        ("python-pytest" ,python-pytest)
        ("python-pytest-mock" ,python-pytest-mock)))
-    (home-page "http://unknown-horizons.org/")
+    (home-page "https://unknown-horizons.org/")
     (synopsis "Isometric realtime strategy, economy and city building simulation")
     (description
      "Unknown Horizons is a 2D realtime strategy simulation with an emphasis