diff --git a/.cvsignore b/.cvsignore
index 8ae2449..9ab2407 100644
--- a/.cvsignore
+++ b/.cvsignore
@@ -1 +1 @@
-gsl-1.12.tar.gz
+gsl-1.13.tar.gz
diff --git a/gsl.spec b/gsl.spec
index 8eeb0bc..d47ae5a 100644
--- a/gsl.spec
+++ b/gsl.spec
@@ -1,7 +1,7 @@
 Summary: The GNU Scientific Library for numerical analysis
 Name: gsl
-Version: 1.12
-Release: 6%{?dist}
+Version: 1.13
+Release: 1%{?dist}
 URL: http://www.gnu.org/software/gsl/
 Source: ftp://ftp.gnu.org/gnu/gsl/%{name}-%{version}.tar.gz
 Patch0: gsl-1.10-lib64.patch
@@ -104,6 +104,9 @@ rm -rf $RPM_BUILD_ROOT
 %{_libdir}/*.a
 
 %changelog
+* Tue Sep 15 2009 Ivana Varekova <varekova@redhat.com> - 1.13-1
+- update to 1.13
+
 * Mon Aug 17 2009 Ivana Varekova <varekova@redhat.com> - 1.12-6
 - fix preun and post scripts (#517568)
 
diff --git a/sources b/sources
index 477cd45..4386212 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-3ec101903c8157756fa1352161bd4c39  gsl-1.12.tar.gz
+d9fcfa367c44ab68a25b4edf34c3c5f7  gsl-1.13.tar.gz