diff --git a/apisix/prod/values.yaml b/apisix/prod/values.yaml
index d71f2d3..3ca193c 100644
--- a/apisix/prod/values.yaml
+++ b/apisix/prod/values.yaml
@@ -15,6 +15,7 @@ autoscaling:
   minReplicas: 3
   maxReplicas: 15
   targetCPUUtilizationPercentage: 200
+  targetMemoryUtilizationPercentage:
 pluginAttrs:
   prometheus:
     export_addr: