diff --git a/tools/appliance/definitions/systemvm64template/postinstall.sh b/tools/appliance/definitions/systemvm64template/postinstall.sh
index 130116d0f28..8cffdaaacd2 100644
--- a/tools/appliance/definitions/systemvm64template/postinstall.sh
+++ b/tools/appliance/definitions/systemvm64template/postinstall.sh
@@ -19,7 +19,7 @@ set -x
 
 ROOTPW=password
 HOSTNAME=systemvm
-CLOUDSTACK_RELEASE=4.5.0
+CLOUDSTACK_RELEASE=4.5.1
 
 add_backports () {
     sed -i '/backports/d' /etc/apt/sources.list
diff --git a/tools/appliance/definitions/systemvmtemplate/postinstall.sh b/tools/appliance/definitions/systemvmtemplate/postinstall.sh
index 9dd6f6bd985..796ae02c21c 100644
--- a/tools/appliance/definitions/systemvmtemplate/postinstall.sh
+++ b/tools/appliance/definitions/systemvmtemplate/postinstall.sh
@@ -19,7 +19,7 @@ set -x
 
 ROOTPW=password
 HOSTNAME=systemvm
-CLOUDSTACK_RELEASE=4.5.0
+CLOUDSTACK_RELEASE=4.5.1
 
 add_backports () {
     sed -i '/backports/d' /etc/apt/sources.list