diff --git a/Formula/libspectre.rb b/Formula/libspectre.rb
index 75442d77dc..4ad5314e75 100644
--- a/Formula/libspectre.rb
+++ b/Formula/libspectre.rb
@@ -1,7 +1,7 @@
 class Libspectre < Formula
   desc "Small library for rendering Postscript documents"
   homepage "https://wiki.freedesktop.org/www/Software/libspectre/"
-  url "http://libspectre.freedesktop.org/releases/libspectre-0.2.7.tar.gz"
+  url "https://libspectre.freedesktop.org/releases/libspectre-0.2.7.tar.gz"
   sha256 "e81b822a106beed14cf0fec70f1b890c690c2ffa150fa2eee41dc26518a6c3ec"
   revision 1