diff --git a/deployments/stacks/dpe-k8s-deployments/main.tf b/deployments/stacks/dpe-k8s-deployments/main.tf
index 68e52ce0..9a80d775 100644
--- a/deployments/stacks/dpe-k8s-deployments/main.tf
+++ b/deployments/stacks/dpe-k8s-deployments/main.tf
@@ -64,7 +64,7 @@ module "postgres-cloud-native-operator" {
 module "postgres-cloud-native-database" {
   depends_on           = [module.postgres-cloud-native-operator, module.airflow, module.argo-cd]
   source               = "spacelift.io/sagebionetworks/postgres-cloud-native-database/aws"
-  version              = "0.3.1"
+  version              = "0.4.0"
   auto_deploy          = true
   auto_prune           = true
   git_revision         = var.git_revision
diff --git a/modules/main.tf b/modules/main.tf
index b1df63ad..ec7ba9c6 100644
--- a/modules/main.tf
+++ b/modules/main.tf
@@ -151,7 +151,7 @@ locals {
       description        = "Helm chart deployment for a postgres database instance using the postgres-cloud-native-operator."
       project_root       = "modules/postgres-cloud-native"
       space_id           = "root"
-      version_number     = "0.3.1"
+      version_number     = "0.4.0"
     }
 
     postgres-cloud-native-operator = {
diff --git a/modules/postgres-cloud-native/main.tf b/modules/postgres-cloud-native/main.tf
index 98d00bd2..adf0e24b 100644
--- a/modules/postgres-cloud-native/main.tf
+++ b/modules/postgres-cloud-native/main.tf
@@ -28,6 +28,23 @@ spec:
   - repoURL: 'https://github.com/Sage-Bionetworks-Workflows/eks-stack.git'
     targetRevision: ${var.git_revision}
     ref: values
+  - repoURL: 'https://github.com/Sage-Bionetworks-Workflows/eks-stack.git'
+    targetRevision: ${var.git_revision}
+    path: modules/postgres-cloud-native/resources
+    kustomize:
+      patches:
+      - target:
+          kind: Pooler
+        patch: |-
+          - op: replace
+            path: /spec/cluster/name
+            value: ${var.argo_deployment_name}-cluster
+          - op: replace
+            path: /spec/instances
+            value: 2
+          - op: replace
+            path: /metadata/name
+            value: ${var.argo_deployment_name}-pooler-rw
   destination:
     server: 'https://kubernetes.default.svc'
     namespace: ${var.namespace}
@@ -54,14 +71,14 @@ resource "kubernetes_secret" "connection-secret" {
 
   data = {
     "dbname"     = "application-database"
-    "host"       = "${var.argo_deployment_name}-cluster-rw.${var.namespace}"
-    "jdbc-uri"   = "jdbc:postgresql://${var.argo_deployment_name}-cluster-rw.${var.namespace}:5432/application-database?password=${random_password.pg-password.result}&user=application-database"
+    "host"       = "${var.argo_deployment_name}-pooler-rw.${var.namespace}"
+    "jdbc-uri"   = "jdbc:postgresql://${var.argo_deployment_name}-pooler-rw.${var.namespace}:5432/application-database?password=${random_password.pg-password.result}&user=application-database"
     "password"   = random_password.pg-password.result
-    "pgpass"     = "${var.argo_deployment_name}-cluster-rw:5432:application-database:application-database:${random_password.pg-password.result}"
+    "pgpass"     = "${var.argo_deployment_name}-pooler-rw:5432:application-database:application-database:${random_password.pg-password.result}"
     "port"       = "5432"
-    "uri"        = "postgresql://application-database:${random_password.pg-password.result}@${var.argo_deployment_name}-cluster-rw.${var.namespace}:5432/application-database"
+    "uri"        = "postgresql://application-database:${random_password.pg-password.result}@${var.argo_deployment_name}-pooler-rw.${var.namespace}:5432/application-database"
     "user"       = "application-database"
     "username"   = "application-database"
-    "connection" = "postgresql://application-database:${random_password.pg-password.result}@${var.argo_deployment_name}-cluster-rw.${var.namespace}:5432/application-database"
+    "connection" = "postgresql://application-database:${random_password.pg-password.result}@${var.argo_deployment_name}-pooler-rw.${var.namespace}:5432/application-database"
   }
 }
diff --git a/modules/postgres-cloud-native/resources/kustomization.yaml b/modules/postgres-cloud-native/resources/kustomization.yaml
new file mode 100644
index 00000000..49294444
--- /dev/null
+++ b/modules/postgres-cloud-native/resources/kustomization.yaml
@@ -0,0 +1,4 @@
+apiVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+resources:
+- pooler.yaml
diff --git a/modules/postgres-cloud-native/resources/pooler.yaml b/modules/postgres-cloud-native/resources/pooler.yaml
new file mode 100644
index 00000000..3f2d8e1f
--- /dev/null
+++ b/modules/postgres-cloud-native/resources/pooler.yaml
@@ -0,0 +1,15 @@
+apiVersion: postgresql.cnpg.io/v1
+kind: Pooler
+metadata:
+  name: replaced-by-kustomize
+spec:
+  cluster:
+    name: replaced-by-kustomize-2
+
+  instances: 2
+  type: rw
+  pgbouncer:
+    poolMode: session
+    parameters:
+      max_client_conn: "1000"
+      default_pool_size: "20"
\ No newline at end of file