diff --git a/controllers/postgres_controller.go b/controllers/postgres_controller.go
index 7156ab9f..8d85efdd 100644
--- a/controllers/postgres_controller.go
+++ b/controllers/postgres_controller.go
@@ -266,6 +266,8 @@ func patchRawZ(out *zalando.Postgresql, in *pg.Postgres) {
 
 	out.Spec.ResourceRequests.CPU = in.Spec.Size.CPU
 	out.Spec.ResourceRequests.Memory = in.Spec.Size.Memory
+	out.Spec.ResourceLimits.CPU = in.Spec.Size.CPU
+	out.Spec.ResourceLimits.Memory = in.Spec.Size.Memory
 
 	// todo: Check if the validation should be performed here.
 	out.Spec.Volume.Size = in.Spec.Size.StorageSize