diff --git a/.gitignore b/.gitignore
index 59b311b..3dbebae 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 /ppc64-diag-2.4.3.tar.gz
 /ppc64-diag-2.6.1.tar.gz
 /ppc64-diag-2.6.2.tar.gz
+/ppc64-diag-2.6.3.tar.gz
diff --git a/ppc64-diag.spec b/ppc64-diag.spec
index 95a9f73..821c18b 100644
--- a/ppc64-diag.spec
+++ b/ppc64-diag.spec
@@ -1,19 +1,20 @@
 Name:           ppc64-diag
-Version:        2.6.2
-Release:        3%{?dist}
+Version:        2.6.3
+Release:        1%{?dist}
 Summary:        PowerLinux Platform Diagnostics
 URL:            http://sourceforge.net/projects/linux-diag/files/ppc64-diag/
 Group:          System Environment/Base
 License:        EPL
 ExclusiveArch:  ppc ppc64 ppc64le
-BuildRequires:  libservicelog-devel, flex, perl, byacc, librtas-devel
+BuildRequires:  libservicelog-devel, flex, perl, byacc
 BuildRequires:  libvpd-devel, systemd-units
 BuildRequires:  ncurses-devel
+BuildRequires:  librtas-devel >= 1.3.9
+
 Requires:       servicelog, lsvpd
-# PRRN RTAS event notification handler depends on below librtas
-# and powerpc-utils versions.
-Requires:	librtas >= 1.3.8
-Requires:	powerpc-utils >= 1.2.16
+# PCI hotplug support on PowerKVM guest depends on below
+# powerpc-utils version.
+Requires:	powerpc-utils >= 1.2.19
 Buildroot:      %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
 Source0:        http://downloads.sourceforge.net/project/linux-diag/ppc64-diag/%{version}/%{name}-%{version}.tar.gz
 Source1:        rtas_errd.service
@@ -120,6 +121,9 @@ fi
 
 
 %changelog
+* Fri Mar 07 2014 Vasant Hegde <hegdevasant@linux.vnet.ibm.com> - 2.6.3
+- Update to latest upstream 2.6.3
+
 * Thu Oct 10 2013 Vasant Hegde <hegdevasant@linux.vnet.ibm.com> - 2.6.2-3
 - Add ppc64le architecture
 
diff --git a/sources b/sources
index 867f047..c9c0ea2 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-ddb2922983b44687281a296a4dd13e0e  ppc64-diag-2.6.2.tar.gz
+2275bd010bf0bbe4b458100f662a68a7  ppc64-diag-2.6.3.tar.gz