diff --git a/k8s/zookeeper/values.yaml b/k8s/zookeeper/values.yaml
index 336782b..710672f 100644
--- a/k8s/zookeeper/values.yaml
+++ b/k8s/zookeeper/values.yaml
@@ -17,7 +17,7 @@
 ## - https://github.com/kubernetes/contrib/blob/master/statefulsets/zookeeper/Makefile#L1
 image:
   repository: zookeeper     # Container image repository for zookeeper container.
-  tag: 3.5.5                # Container image tag for zookeeper container.
+  tag: 3.7.1                # Container image tag for zookeeper container.
   pullPolicy: IfNotPresent  # Image pull criteria for zookeeper container.
 
 service:
@@ -292,7 +292,7 @@
   ## internal time.
   ZK_TICK_TIME: 2000
 
-  ZOO_AUTOPURGE_PURGEINTERVAL: 0
+  ZOO_AUTOPURGE_PURGEINTERVAL: 6
   ZOO_AUTOPURGE_SNAPRETAINCOUNT: 3
   ZOO_STANDALONE_ENABLED: false
 
diff --git a/k8s/zookeeper/zookeeper.yaml b/k8s/zookeeper/zookeeper.yaml
index 4b55965..8f39052 100644
--- a/k8s/zookeeper/zookeeper.yaml
+++ b/k8s/zookeeper/zookeeper.yaml
@@ -254,7 +254,7 @@
       containers:
 
         - name: zookeeper
-          image: "zookeeper:3.5.5"
+          image: "zookeeper:3.7.1"
           imagePullPolicy: IfNotPresent
           command: 
              - "/bin/bash"
@@ -306,7 +306,7 @@
             - name: ZK_TICK_TIME
               value: "2000"
             - name: ZOO_AUTOPURGE_PURGEINTERVAL
-              value: "0"
+              value: "6"
             - name: ZOO_AUTOPURGE_SNAPRETAINCOUNT
               value: "3"
             - name: ZOO_INIT_LIMIT
diff --git a/k8s/zuul.yaml b/k8s/zuul.yaml
index 38e1af3..90c3792 100644
--- a/k8s/zuul.yaml
+++ b/k8s/zuul.yaml
@@ -326,7 +326,7 @@
   domains:
     - ci.gerritcodereview.com
 ---
-apiVersion: extensions/v1beta1
+apiVersion: networking.k8s.io/v1
 kind: Ingress
 metadata:
   name: zuul-web
@@ -340,6 +340,9 @@
     http:
       paths:
       - backend:
-          serviceName: zuul-web
-          servicePort: 9000
+          service:
+            name: zuul-web
+            port:
+              number: 9000
         path: /*
+        pathType: ImplementationSpecific