diff --git a/.cvsignore b/.cvsignore
index 12aab68..5b02cc3 100644
--- a/.cvsignore
+++ b/.cvsignore
@@ -1 +1 @@
-mpfr-2.4.1.tar.bz2
+mpfr-2.4.1.tar.lzma
diff --git a/mpfr.spec b/mpfr.spec
index b08b88b..489f238 100644
--- a/mpfr.spec
+++ b/mpfr.spec
@@ -1,9 +1,9 @@
 Summary: A C library for multiple-precision floating-point computations
 Name: mpfr
 Version: 2.4.1
-Release: 3%{?dist}
+Release: 4%{?dist}
 URL: http://www.mpfr.org/
-Source0: http://www.mpfr.org/mpfr-current/mpfr-%{version}.tar.bz2
+Source0: http://www.mpfr.org/mpfr-current/mpfr-%{version}.tar.lzma
 License: LGPLv2+ and GPLv2+ and GFDL
 Group: System Environment/Libraries
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
@@ -87,6 +87,9 @@ rm -rf $RPM_BUILD_ROOT
 %{_infodir}/mpfr.info*
 
 %changelog
+* Wed Aug 12 2009 Ville Skyttä <ville.skytta@iki.fi> - 2.4.1-4
+- Use lzma compressed upstream tarball.
+
 * Mon Aug 10 2009 Ivana Varekova <varekova redhat com> 2.4.1-3
 - fix installation with --excludedocs option (#515958)
 
diff --git a/sources b/sources
index 9fbb228..c1e3531 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-c5ee0a8ce82ad55fe29ac57edd35d09e  mpfr-2.4.1.tar.bz2
+22402995cf2496d8faea42c8da02ce1f  mpfr-2.4.1.tar.lzma