diff --git a/devops/custom_pipelines/infrastructure/service-resource.tfvars b/devops/custom_pipelines/infrastructure/service-resource.tfvars
index 812c2f151cbd36aa6c03509aac18b935256912c7..7e4fb0d7ddfa1e50fbefe0b62ad079f6d8d6f30d 100644
--- a/devops/custom_pipelines/infrastructure/service-resource.tfvars
+++ b/devops/custom_pipelines/infrastructure/service-resource.tfvars
@@ -23,7 +23,7 @@ resource_tags = {
 }
 
 # Kubernetes Settings
-kubernetes_version = "1.18.8"
+kubernetes_version = "1.19.11"
 aks_agent_vm_size  = "Standard_E4s_v3"
 aks_agent_vm_count = "5"
 subnet_aks_prefix  = "10.10.2.0/23"
diff --git a/infra/modules/providers/azure/aks/main.tf b/infra/modules/providers/azure/aks/main.tf
index 1c55cd9ff98fee3e2a82ef64d6da6c5199fc2cef..d7e6c9561cc0c3835c005bb63dc57b9025cf411a 100644
--- a/infra/modules/providers/azure/aks/main.tf
+++ b/infra/modules/providers/azure/aks/main.tf
@@ -72,6 +72,7 @@ resource "azurerm_kubernetes_cluster_node_pool" "internal" {
   min_count             = var.auto_scaling_default_node == true ? var.agent_vm_count : null
   availability_zones    = var.availability_zones
   mode                  = "System"
+  orchestrator_version  = var.kubernetes_version
 }
 
 resource "azurerm_kubernetes_cluster" "main" {
@@ -93,15 +94,16 @@ resource "azurerm_kubernetes_cluster" "main" {
   }
 
   default_node_pool {
-    name                = "default"
-    node_count          = var.agent_vm_count
-    vm_size             = var.agent_vm_size
-    os_disk_size_gb     = var.agent_vm_disk
-    vnet_subnet_id      = var.vnet_subnet_id
-    enable_auto_scaling = var.auto_scaling_default_node
-    max_pods            = var.max_pods
-    max_count           = var.auto_scaling_default_node == true ? var.max_node_count : null
-    min_count           = var.auto_scaling_default_node == true ? var.agent_vm_count : null
+    name                 = "default"
+    node_count           = var.agent_vm_count
+    vm_size              = var.agent_vm_size
+    os_disk_size_gb      = var.agent_vm_disk
+    vnet_subnet_id       = var.vnet_subnet_id
+    enable_auto_scaling  = var.auto_scaling_default_node
+    max_pods             = var.max_pods
+    max_count            = var.auto_scaling_default_node == true ? var.max_node_count : null
+    min_count            = var.auto_scaling_default_node == true ? var.agent_vm_count : null
+    orchestrator_version = var.kubernetes_version
   }
 
   network_profile {
diff --git a/infra/modules/providers/azure/aks/testing/unit_test.go b/infra/modules/providers/azure/aks/testing/unit_test.go
index 59fc84c327a64fffa74b463230a73a0c211f454d..653c725864175ae3f06e287507bdd677a4cf1b73 100644
--- a/infra/modules/providers/azure/aks/testing/unit_test.go
+++ b/infra/modules/providers/azure/aks/testing/unit_test.go
@@ -42,7 +42,7 @@ func asMap(t *testing.T, jsonString string) map[string]interface{} {
 func TestTemplate(t *testing.T) {
 
 	expectedResult := asMap(t, `{
-		"kubernetes_version": "1.17.9"
+		"kubernetes_version": "1.19.11"
 	}`)
 
 	testFixture := infratests.UnitTestFixture{
diff --git a/infra/modules/providers/azure/aks/variables.tf b/infra/modules/providers/azure/aks/variables.tf
index 3dd2bcb850c134de892e200a3b604aec5f7baa27..dd4e64c658c237b40a54507f6de3cf3762a6b7b3 100644
--- a/infra/modules/providers/azure/aks/variables.tf
+++ b/infra/modules/providers/azure/aks/variables.tf
@@ -59,7 +59,7 @@ variable "max_pods" {
 
 variable "kubernetes_version" {
   type    = string
-  default = "1.17.9"
+  default = "1.19.11"
 }
 
 variable "admin_user" {
diff --git a/infra/modules/providers/azure/redis-cache/main.tf b/infra/modules/providers/azure/redis-cache/main.tf
index 3e900fba42ab260905ea2f471135e80b2858146a..dea96984900e8fbd9394eb070a5bbb2b9c96a661 100644
--- a/infra/modules/providers/azure/redis-cache/main.tf
+++ b/infra/modules/providers/azure/redis-cache/main.tf
@@ -27,6 +27,7 @@ resource "azurerm_redis_cache" "arc" {
   minimum_tls_version = var.minimum_tls_version
   tags                = var.resource_tags
   zones               = var.zones
+  replicas_per_master = 1
 
   redis_configuration {
     maxmemory_reserved              = var.memory_features.maxmemory_reserved
diff --git a/infra/templates/osdu-r3-mvp/service_resources/override.tfvars b/infra/templates/osdu-r3-mvp/service_resources/override.tfvars
index d76cf45af5d1b39c6b6ba96348c88d178704b786..20de212411d0029d789fa7e423a6807a2ab4fdda 100644
--- a/infra/templates/osdu-r3-mvp/service_resources/override.tfvars
+++ b/infra/templates/osdu-r3-mvp/service_resources/override.tfvars
@@ -34,7 +34,7 @@ resource_tags = {
 }
 
 # Kubernetes Settings
-kubernetes_version = "1.18.17"
+kubernetes_version = "1.19.11"
 aks_agent_vm_size  = "Standard_E4s_v3"
 aks_agent_vm_count = "5"
 subnet_aks_prefix  = "10.10.2.0/23"
diff --git a/infra/templates/osdu-r3-mvp/service_resources/terraform.tfvars b/infra/templates/osdu-r3-mvp/service_resources/terraform.tfvars
index 73d2947d911ee3e53c41d49243386665d1f6827b..7af5a0d6aae2a4e23000f361baa8ee3d82d761a8 100644
--- a/infra/templates/osdu-r3-mvp/service_resources/terraform.tfvars
+++ b/infra/templates/osdu-r3-mvp/service_resources/terraform.tfvars
@@ -39,7 +39,7 @@ resource_tags = {
 }
 
 # Kubernetes Settings
-kubernetes_version = "1.18.17"
+kubernetes_version = "1.19.11"
 aks_agent_vm_size  = "Standard_E4s_v3"
 aks_agent_vm_count = "5"
 aks_agent_vm_disk  = 128
diff --git a/infra/templates/osdu-r3-mvp/service_resources/variables.tf b/infra/templates/osdu-r3-mvp/service_resources/variables.tf
index 0259860f954bc3ac0eb892717d0e339585ae5d55..6c5b06d5b4ca10d72b9c74a6b3c7c4e4eebe4298 100644
--- a/infra/templates/osdu-r3-mvp/service_resources/variables.tf
+++ b/infra/templates/osdu-r3-mvp/service_resources/variables.tf
@@ -248,7 +248,7 @@ variable "aks_agent_vm_disk" {
 
 variable "kubernetes_version" {
   type    = string
-  default = "1.17.11"
+  default = "1.19.11"
 }
 
 variable "ssh_public_key_file" {