diff --git a/vigra.spec b/vigra.spec
index c96a252..9728999 100644
--- a/vigra.spec
+++ b/vigra.spec
@@ -2,7 +2,7 @@
 Summary:        Generic Programming for Computer Vision
 Name:           vigra
 Version:        1.8.0
-Release:        1%{?dist}
+Release:        2%{?dist}
 License:        MIT
 Group:          Development/Libraries
 Source:         http://hci.iwr.uni-heidelberg.de/%{name}/%{name}-%{version}-src.tar.gz
@@ -79,6 +79,9 @@ rm -rf %{buildroot}
 %{python_sitearch}/vigra
 
 %changelog
+* Tue Dec 06 2011 Adam Jackson <ajax@redhat.com> - 1.8.0-2
+- Rebuild for new libpng
+
 * Sat Sep 24 2011 Bruno Postle <bruno@postle.net> 1.8.0-1
 - upstream release