diff --git a/Formula/libzdb.rb b/Formula/libzdb.rb
index 9a6dde0a8f..c7b3a1b277 100644
--- a/Formula/libzdb.rb
+++ b/Formula/libzdb.rb
@@ -1,7 +1,7 @@
 class Libzdb < Formula
   desc "Database connection pool library"
-  homepage "http://tildeslash.com/libzdb/"
-  url "http://tildeslash.com/libzdb/dist/libzdb-3.1.tar.gz"
+  homepage "https://tildeslash.com/libzdb/"
+  url "https://tildeslash.com/libzdb/dist/libzdb-3.1.tar.gz"
   sha256 "0f01abb1b01d1a1f4ab9b55ad3ba445d203fc3b4757abdf53e1d85e2b7b42695"
   revision 5