diff --git a/libpng16.changes b/libpng16.changes
index 4e0dfb2..8cd4f8c 100644
--- a/libpng16.changes
+++ b/libpng16.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Wed May  4 09:10:44 UTC 2022 - Marcus Meissner <meissner@suse.com>
+
+- switch source url to https
+
 -------------------------------------------------------------------
 Thu May  6 06:43:17 UTC 2021 - pgajdos@suse.com
 
diff --git a/libpng16.spec b/libpng16.spec
index 2acd822..0f49e6a 100644
--- a/libpng16.spec
+++ b/libpng16.spec
@@ -1,7 +1,7 @@
 #
 # spec file for package libpng16
 #
-# Copyright (c) 2021 SUSE LLC
+# Copyright (c) 2022 SUSE LLC
 #
 # All modifications and additions to the file contributed by third parties
 # remain the property of their copyright owners, unless otherwise agreed
@@ -31,7 +31,7 @@ Summary:        Library for the Portable Network Graphics Format (PNG)
 License:        Zlib
 Group:          Development/Libraries/C and C++
 URL:            http://www.libpng.org/pub/png/libpng.html
-Source0:        http://prdownloads.sourceforge.net/libpng/libpng-%{version}.tar.xz
+Source0:        https://prdownloads.sourceforge.net/libpng/libpng-%{version}.tar.xz
 Source2:        libpng16.keyring
 Source3:        rpm-macros.libpng-tools
 Source4:        baselibs.conf