diff --git a/libisofs.spec b/libisofs.spec
index 66e17bc..800cf37 100644
--- a/libisofs.spec
+++ b/libisofs.spec
@@ -10,7 +10,8 @@ Source0:        http://files.libburnia-project.org/releases/%{name}-%{version}.t
 BuildRoot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 
 BuildRequires:  libburn-devel doxygen graphviz
-Requires:       libburn >= 0.2.2
+Requires:       libburn >= 0.4.0
+
 
 %description
 Libisofs is a library to pack up hard disk files and directories into a