diff --git a/.gitignore b/.gitignore
index 1e57dfa..768b83d 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 /lbzip2-0.23.tar.gz
 /lbzip2-2.0.tar.gz
 /lbzip2-2.1.tar.gz
+/lbzip2-2.1-gl1.tar.gz
diff --git a/lbzip2.spec b/lbzip2.spec
index 8ad5007..1fb4f27 100644
--- a/lbzip2.spec
+++ b/lbzip2.spec
@@ -1,11 +1,11 @@
 Name:           lbzip2
 Version:        2.1
-Release:        4%{?dist}
+Release:        5%{?dist}
 Summary:        Fast, multi-threaded bzip2 utility
 Group:          Applications/File
 License:        GPLv3+
 URL:            https://github.com/kjn/lbzip2
-Source0:        https://github.com/downloads/kjn/%{name}/%{name}-%{version}.tar.gz
+Source0:        https://github.com/downloads/kjn/%{name}/%{name}-%{version}-gl1.tar.gz
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
 
@@ -49,6 +49,9 @@ rm -rf %{buildroot}
 
 
 %changelog
+* Fri Jul 27 2012 Lukas Zapletal <lzap+rpm[@]redhat.com> - 2.1-5
+- new upstream release fixes gnu lib (gl1)
+
 * Thu Jul 19 2012 Fedora Release Engineering <rel-eng@lists.fedoraproject.org> - 2.1-4
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_18_Mass_Rebuild
 
diff --git a/sources b/sources
index 5f7d43f..12fde98 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-180c17fd09bbe6eeb189ffaabdc3fc4e  lbzip2-2.1.tar.gz
+a0bfa8d317dec7794c1e7b3b60608f6e  lbzip2-2.1-gl1.tar.gz