diff --git a/.cvsignore b/.cvsignore
index c78a3ca..7708342 100644
--- a/.cvsignore
+++ b/.cvsignore
@@ -1 +1 @@
-libpng-1.2.39.tar.bz2
+libpng-1.2.42.tar.bz2
diff --git a/libpng.spec b/libpng.spec
index 3cafade..224e72d 100644
--- a/libpng.spec
+++ b/libpng.spec
@@ -1,13 +1,16 @@
 Summary: A library of functions for manipulating PNG image format files
 Name: libpng
 Epoch: 2
-Version: 1.2.39
+Version: 1.2.42
 Release: 1%{?dist}
 License: zlib
 Group: System Environment/Libraries
 URL: http://www.libpng.org/pub/png/
 
+# Note: non-current tarballs get moved to the history/ subdirectory,
+# so look there if you fail to retrieve the version you want
 Source: ftp://ftp.simplesystems.org/pub/png/src/libpng-%{version}.tar.bz2
+
 Patch0: libpng-multilib.patch
 Patch1: libpng-pngconf.patch
 
@@ -91,6 +94,9 @@ rm -rf $RPM_BUILD_ROOT%{_libdir}/libpng12.la
 rm -rf $RPM_BUILD_ROOT
 
 %changelog
+* Wed Jan 20 2010 Tom Lane <tgl@redhat.com> 2:1.2.42-1
+- Update to libpng 1.2.42
+
 * Thu Aug 20 2009 Tom Lane <tgl@redhat.com> 2:1.2.39-1
 - Update to libpng 1.2.39
 
diff --git a/sources b/sources
index 23fc0d6..1ca3b68 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-4d48ecff6fc7ab12e97b07d0f65ec2f0  libpng-1.2.39.tar.bz2
+9a5cbe9798927fdf528f3186a8840ebe  libpng-1.2.42.tar.bz2