diff --git a/.gitignore b/.gitignore
index b8b5a87..0e10b71 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 clog
 /armadillo-3.810.0.tar.gz
 /armadillo-3.820.0.tar.gz
+/armadillo-3.900.4.tar.gz
diff --git a/armadillo.spec b/armadillo.spec
index e13565c..263cf25 100644
--- a/armadillo.spec
+++ b/armadillo.spec
@@ -1,5 +1,5 @@
 Name:           armadillo
-Version:        3.820.0
+Version:        3.900.4
 Release:        1%{?dist}
 Summary:        Fast C++ matrix library with interfaces to LAPACK and ATLAS
 
@@ -95,6 +95,9 @@ rm -rf $RPM_BUILD_ROOT
 %doc armadillo_nicta_2010.pdf rcpp_armadillo_csda_2013.pdf
 
 %changelog
+* Wed Jun 12 2013 José Matos <jamatos@fedoraproject.org> - 3.900.4-1
+- update to 3.900.4
+
 * Mon May 13 2013 José Matos <jamatos@fedoraproject.org> - 3.820.0-1
 - update to 3.820.0
 
diff --git a/sources b/sources
index ad992c6..b8edf82 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-139cdded04fb2e90d7c4bb6852e4fb2e  armadillo-3.820.0.tar.gz
+5377a1bb168b3fc5168584effe537ad0  armadillo-3.900.4.tar.gz