Update upgrade-4.5.rst
diff --git a/source/upgrade/upgrade-4.5.rst b/source/upgrade/upgrade-4.5.rst
index b8f0038..245dc9c 100644
--- a/source/upgrade/upgrade-4.5.rst
+++ b/source/upgrade/upgrade-4.5.rst
@@ -254,13 +254,13 @@
---------------------
**(XenServer only)** Copy vhd-utils file on CloudStack management servers.
-Copy the file `vhd-utils <http://download.cloud.com.s3.amazonaws.com/tools/vhd-util>`_
+Copy the file `vhd-utils <http://download.cloudstack.org/tools/vhd-util>`_
to ``/usr/share/cloudstack-common/scripts/vm/hypervisor/xenserver``.
.. sourcecode:: bash
wget -P /usr/share/cloudstack-common/scripts/vm/hypervisor/xenserver \
- http://download.cloud.com.s3.amazonaws.com/tools/vhd-util
+ http://download.cloudstack.org/tools/vhd-util
Hypervisor: VMware
