diff --git a/README.md b/README.md
index a820588..c4b36bc 100644
--- a/README.md
+++ b/README.md
@@ -8,13 +8,13 @@ For details of the architecture, see [_Deploy a highly available Apache Cassandr
 
 - Permission to `manage` the following types of resources in your Oracle Cloud Infrastructure tenancy: `vcns`, `internet-gateways`, `route-tables`, `security-lists`, `subnets`, and `instances`.
 
-- Quota to create the following resources: 1 VCN, 1 subnet, 1 Internet Gateway, 1 NAT Gateway, 1 route rules, and 6 compute instance.
+- Quota to create the following resources: 1 VCN, 1 subnet, 1 Internet Gateway, 1 NAT Gateway, 1 route rules, and 6 compute instances (Cassandra nodes).
 
 If you don't have the required permissions and quota, contact your tenancy administrator. See [Policy Reference](https://docs.cloud.oracle.com/en-us/iaas/Content/Identity/Reference/policyreference.htm), [Service Limits](https://docs.cloud.oracle.com/en-us/iaas/Content/General/Concepts/servicelimits.htm), [Compartment Quotas](https://docs.cloud.oracle.com/iaas/Content/General/Concepts/resourcequotas.htm).
 
 ## Deploy Using Oracle Resource Manager
 
-1. Click [![Deploy to Oracle Cloud](https://oci-resourcemanager-plugin.plugins.oci.oraclecloud.com/latest/deploy-to-oracle-cloud.svg)](https://console.us-phoenix-1.oraclecloud.com/resourcemanager/stacks/create?region=home&zipUrl=https://github.com/oracle-quickstart/oci-arch-cassandra/raw/master/resource-manager/oci-arch-cassandra.zip)
+1. Click [![Deploy to Oracle Cloud](https://oci-resourcemanager-plugin.plugins.oci.oraclecloud.com/latest/deploy-to-oracle-cloud.svg)](https://cloud.oracle.com/resourcemanager/stacks/create?region=home&zipUrl=https://github.com/oracle-quickstart/oci-arch-cassandra/raw/master/resource-manager/oci-arch-cassandra.zip)
 
 
     If you aren't already signed in, when prompted, enter the tenancy and user credentials.
diff --git a/cassandra.tf b/cassandra.tf
index 43d7668..75fb8f9 100644
--- a/cassandra.tf
+++ b/cassandra.tf
@@ -15,4 +15,5 @@ module "cassandra" {
   ssl_storage_port     = var.ssl_storage_port
   ssh_authorized_keys  = tls_private_key.public_private_key_pair.public_key_openssh
   ssh_private_key      = tls_private_key.public_private_key_pair.private_key_pem
+  cassandra_version    = var.cassandra_version
 }
diff --git a/resource-manager/oci-arch-cassandra.zip b/resource-manager/oci-arch-cassandra.zip
index 9e6fb36..7e2e56b 100644
Binary files a/resource-manager/oci-arch-cassandra.zip and b/resource-manager/oci-arch-cassandra.zip differ
diff --git a/schema.yaml b/schema.yaml
index 867680e..241f7a4 100755
--- a/schema.yaml
+++ b/schema.yaml
@@ -22,6 +22,7 @@ variableGroups:
 - title: Optional Configuration
   visible: true
   variables:
+  - cassandra_version
   - instance_os
   - linux_os_version
   - vcn_cidr
@@ -75,6 +76,16 @@ variables:
     title: "Number of seed nodes in Cassandra cluster"
     description: "Choose the number of seed nodes in Cassandra cluster."
 
+  cassandra_version:
+    type: enum
+    required: false
+    visible: true
+    title: "Cassandra version"
+    description: "Choose version of Cassandra."
+    default: "3.11.10"
+    enum:
+      - "3.11.10"  
+
   vcn_cidr:
     type: string
     visible: true
diff --git a/variables.tf b/variables.tf
index 37c5d99..2e36698 100644
--- a/variables.tf
+++ b/variables.tf
@@ -48,3 +48,8 @@ variable "storage_port" {
 variable "ssl_storage_port" {
   default = 7001
 }
+
+variable "cassandra_version" {
+  description = "Version of Cassandra software"
+  default     = "3.11.10"
+}