File project.diff of Package mingw64-libpng

--- mingw64-libpng.spec.orig
+++ mingw64-libpng.spec
@@ -17,13 +17,13 @@
 
 
 Name:           mingw64-libpng
-Version:        1.6.19
+Version:        1.6.42
 Release:        0
 Summary:        PNG reference library
 License:        Zlib
 Group:          Development/Libraries/C and C++
 Url:            http://www.libpng.org/pub/png/
-Source:         ftp://ftp.simplesystems.org/pub/png/src/libpng-%{version}.tar.xz
+Source:         https://prdownloads.sourceforge.net/libpng/libpng-%{version}.tar.xz
 #!BuildIgnore: post-build-checks
 BuildRequires:  mingw64-cross-binutils
 BuildRequires:  mingw64-cross-gcc