diff --git a/Formula/gifsicle.rb b/Formula/gifsicle.rb
index f5197c2145..1dac8b0ab2 100644
--- a/Formula/gifsicle.rb
+++ b/Formula/gifsicle.rb
@@ -1,7 +1,7 @@
 class Gifsicle < Formula
   desc "GIF image/animation creator/editor"
   homepage "http://www.lcdf.org/gifsicle/"
-  url "http://www.lcdf.org/gifsicle/gifsicle-1.88.tar.gz"
+  url "https://www.lcdf.org/gifsicle/gifsicle-1.88.tar.gz"
   sha256 "4585d2e683d7f68eb8fcb15504732d71d7ede48ab5963e61915201f9e68305be"
 
   bottle do