diff --git a/tuxguitar.spec b/tuxguitar.spec
index 026a04f..27c6c3d 100644
--- a/tuxguitar.spec
+++ b/tuxguitar.spec
@@ -1,6 +1,6 @@
 Name:          tuxguitar
 Version:       1.2
-Release:       4mamba
+Release:       5mamba
 Summary:       A Multitrack tablature editor and player
 Group:         Graphical Desktop/Applications/Multimedia
 Vendor:        openmamba
@@ -19,6 +19,8 @@ BuildRequires: libgcj4-devel
 BuildRequires: libjack-devel
 BuildRequires: libz-devel
 ## AUTOBUILDREQ-END
+BuildRequires: libgcj-devel >= 4.9
+BuildRequires: libgcj-devel >= 4.9.255
 BuildRequires: eclipse-swt
 BuildRequires: java-gcj-compat
 BuildRequires: libjack-devel
@@ -154,6 +156,9 @@ EOF
 %{_docdir}/tuxguitar/*
 
 %changelog
+* Fri May 16 2014 Silvan Calarco <silvan.calarco@mambasoft.it> 1.2-5mamba
+- rebuilt with gcj 4.9.0
+
 * Thu Sep 05 2013 Silvan Calarco <silvan.calarco@mambasoft.it> 1.2-4mamba
 - rebuilt