diff --git a/apps/k8s01/matrix/database-override.yaml b/apps/k8s01/matrix/database-override.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..405e30d7ac334fc4e0988ff872b4a3545038c9e4
--- /dev/null
+++ b/apps/k8s01/matrix/database-override.yaml
@@ -0,0 +1,7 @@
+apiVersion: "acid.zalan.do/v1"
+kind: postgresql
+metadata:
+  name: matrix-postgres
+  namespace: matrix
+spec:
+  numberOfInstances: 2
diff --git a/apps/k8s01/matrix/kustomization.yaml b/apps/k8s01/matrix/kustomization.yaml
index c49e8b9f6be4d59aa9a0453889663576f8bb91f0..79d891d96193aa8b1cfd0d0932a1806cb0ce5907 100644
--- a/apps/k8s01/matrix/kustomization.yaml
+++ b/apps/k8s01/matrix/kustomization.yaml
@@ -7,4 +7,5 @@ resources:
   - signing-key.yaml
   - ../../../shared/resourcequotas/default.yaml
 patchesStrategicMerge:
+  - database-override.yaml
   - matrix-synapse-values.yaml