diff --git a/.cvsignore b/.cvsignore
index 23e6be5..0d08977 100644
--- a/.cvsignore
+++ b/.cvsignore
@@ -1,4 +1 @@
-zlib-1.2.1.1.tar.gz
-zlib-1.2.2.1.tar.gz
-zlib-1.2.2.2.tar.gz
-zlib-1.2.3.tar.gz
+zlib-1.2.3.tar.bz2
diff --git a/sources b/sources
index 605d1be..71b1da9 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-debc62758716a169df9f62e6ab2bc634  zlib-1.2.3.tar.gz
+dee233bf288ee795ac96a98cc2e369b6  zlib-1.2.3.tar.bz2
diff --git a/zlib.spec b/zlib.spec
index a550e3f..bd5205e 100644
--- a/zlib.spec
+++ b/zlib.spec
@@ -1,9 +1,9 @@
 Summary: The zlib compression and decompression library
 Name: zlib
 Version: 1.2.3
-Release: 23%{?dist}
+Release: 24%{?dist}
 Group: System Environment/Libraries
-Source: http://www.zlib.net/zlib-%{version}.tar.gz
+Source: http://www.zlib.net/zlib-%{version}.tar.bz2
 Patch3: zlib-1.2.3-autotools.patch
 Patch6: minizip-1.2.3-malloc.patch
 URL: http://www.gzip.org/zlib/
@@ -129,6 +129,9 @@ rm -rf ${RPM_BUILD_ROOT}
 %{_libdir}/pkgconfig/minizip.pc
 
 %changelog
+* Tue Aug 11 2009 Ville Skyttä <ville.skytta@iki.fi> - 1.2.3-24
+- Use bzipped upstream tarball.
+
 * Mon Jul 27 2009 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 1.2.3-23
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_12_Mass_Rebuild