diff --git a/tools/build-gtk-stack b/tools/build-gtk-stack
index 74227734ab..251cccd2b9 100755
--- a/tools/build-gtk-stack
+++ b/tools/build-gtk-stack
@@ -220,9 +220,9 @@ if [ ! -f tiff-4.0.1.tar.gz ] ; then
     echo tiff
     fetch_as_is ftp://ftp.remotesensing.org/pub/libtiff/tiff-4.0.1.tar.gz
 fi
-if [ ! -f libpng-1.5.13.tar.xz ] ; then
+if [ ! -f libpng-1.5.14.tar.xz ] ; then
     echo png
-    fetch_as_is ftp://ftp.simplesystems.org/pub/libpng/png/src/libpng-1.5.13.tar.xz
+    fetch_as_is ftp://ftp.simplesystems.org/pub/libpng/png/src/libpng-1.5.14.tar.xz
 fi
 if [ ! -f jpegsrc.v8d.tar.gz ] ; then
     echo jpeg