diff --git a/diffpdf.spec b/diffpdf.spec
index d1408b6..26c6a38 100644
--- a/diffpdf.spec
+++ b/diffpdf.spec
@@ -1,6 +1,7 @@
+%global _hardened_build 1
 Name:           diffpdf
 Version:        2.1.3
-Release:        1%{?dist}
+Release:        2%{?dist}
 Summary:        PDF files comparator
 
 Group:          Applications/Text
@@ -73,6 +74,9 @@ rm -rf $RPM_BUILD_ROOT
 
 
 %changelog
+* Sun Oct 20 2013 Till Maas <opensource@till.name> - 2.1.3-2
+- Harden build
+
 * Sun Oct 20 2013 Till Maas <opensource@till.name> - 2.1.3-1
 - Update to new release