diff --git a/pkgs/by-name/li/lilypond/package.nix b/pkgs/by-name/li/lilypond/package.nix
index 60e7f2deb45c..e9e2aeb9cb15 100644
--- a/pkgs/by-name/li/lilypond/package.nix
+++ b/pkgs/by-name/li/lilypond/package.nix
@@ -52,7 +52,7 @@ stdenv.mkDerivation (finalAttrs: {
   ];
 
   src = fetchzip {
-    url = "http://lilypond.org/download/sources/v${lib.versions.majorMinor finalAttrs.version}/lilypond-${finalAttrs.version}.tar.gz";
+    url = "https://lilypond.org/download/sources/v${lib.versions.majorMinor finalAttrs.version}/lilypond-${finalAttrs.version}.tar.gz";
     hash = "sha256-UYdORvodrVchxslOxpMiXrAh7DtB9sWp9yqZU/jeB9Y=";
   };