diff --git a/kafka-impl/src/main/java/io/streamnative/pulsar/handlers/kop/KafkaRequestHandler.java b/kafka-impl/src/main/java/io/streamnative/pulsar/handlers/kop/KafkaRequestHandler.java
index f49d287ae7..c08a1f0447 100644
--- a/kafka-impl/src/main/java/io/streamnative/pulsar/handlers/kop/KafkaRequestHandler.java
+++ b/kafka-impl/src/main/java/io/streamnative/pulsar/handlers/kop/KafkaRequestHandler.java
@@ -28,7 +28,6 @@
 import static org.apache.kafka.common.requests.CreateTopicsRequest.TopicDetails;
 
 import com.google.common.annotations.VisibleForTesting;
-import com.google.common.base.Joiner;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Maps;
 import com.google.common.collect.Sets;
@@ -489,13 +488,6 @@ private static boolean isInternalTopic(final String fullTopicName) {
                 || partitionedTopicName.endsWith("/" + TRANSACTION_STATE_TOPIC_NAME);
     }
 
-    private static String path(String... parts) {
-        StringBuilder sb = new StringBuilder();
-        sb.append(POLICY_ROOT);
-        Joiner.on('/').appendTo(sb, parts);
-        return sb.toString();
-    }
-
     private CompletableFuture<Set<String>> expandAllowedNamespaces(Set<String> allowedNamespaces) {
         String currentTenant = getCurrentTenant(kafkaConfig.getKafkaTenant());
         return expandAllowedNamespaces(allowedNamespaces, currentTenant, pulsarService);
@@ -517,12 +509,8 @@ static CompletableFuture<Set<String>> expandAllowedNamespaces(Set<String> allowe
                 String tenant = namespace.substring(0, slash);
                 results.add(pulsarService.getPulsarResources()
                         .getNamespaceResources()
-                        .getChildrenAsync(path(tenant))
-                        .thenAccept(children -> {
-                            children.forEach(ns -> {
-                                result.add(tenant + "/" + ns);
-                            });
-                        }));
+                        .listNamespacesAsync(tenant)
+                        .thenAccept(namespaces -> namespaces.forEach(ns -> result.add(tenant + "/" + ns))));
             }
         }
         return CompletableFuture
diff --git a/kafka-impl/src/main/java/io/streamnative/pulsar/handlers/kop/security/auth/SimpleAclAuthorizer.java b/kafka-impl/src/main/java/io/streamnative/pulsar/handlers/kop/security/auth/SimpleAclAuthorizer.java
index e0aba7b9e8..69e90e123e 100644
--- a/kafka-impl/src/main/java/io/streamnative/pulsar/handlers/kop/security/auth/SimpleAclAuthorizer.java
+++ b/kafka-impl/src/main/java/io/streamnative/pulsar/handlers/kop/security/auth/SimpleAclAuthorizer.java
@@ -16,7 +16,6 @@
 
 import static com.google.common.base.Preconditions.checkArgument;
 
-import com.google.common.base.Joiner;
 import io.streamnative.pulsar.handlers.kop.security.KafkaPrincipal;
 import java.util.Map;
 import java.util.Set;
@@ -36,8 +35,6 @@
 @Slf4j
 public class SimpleAclAuthorizer implements Authorizer {
 
-    private static final String POLICY_ROOT = "/admin/policies/";
-
     private final PulsarService pulsarService;
 
     private final ServiceConfiguration conf;
@@ -73,7 +70,6 @@ private CompletableFuture<Boolean> authorizeTopicPermission(KafkaPrincipal princ
                     new IllegalArgumentException("Resource name must contains namespace."));
             return permissionFuture;
         }
-        String policiesPath = path(namespace.toString());
         String tenantName = namespace.getTenant();
         isSuperUserOrTenantAdmin(tenantName, principal.getName()).whenComplete((isSuperUserOrAdmin, exception) -> {
             if (exception != null) {
@@ -90,7 +86,7 @@ private CompletableFuture<Boolean> authorizeTopicPermission(KafkaPrincipal princ
             getPulsarService()
                     .getPulsarResources()
                     .getNamespaceResources()
-                    .getAsync(policiesPath)
+                    .getPoliciesAsync(namespace)
                     .thenAccept(policies -> {
                         if (!policies.isPresent()) {
                             if (log.isDebugEnabled()) {
@@ -177,7 +173,7 @@ private CompletableFuture<Boolean> authorizeTenantPermission(KafkaPrincipal prin
         getPulsarService()
                 .getPulsarResources()
                 .getTenantResources()
-                .getAsync(path(tenant))
+                .getTenantAsync(tenant)
                 .thenAccept(tenantInfo -> {
                     permissionFuture.complete(tenantInfo.isPresent());
                 }).exceptionally(ex -> {
@@ -234,7 +230,7 @@ private CompletableFuture<Boolean> isSuperUserOrTenantAdmin(String tenant, Strin
             if (ex != null || !isSuperUser) {
                 pulsarService.getPulsarResources()
                         .getTenantResources()
-                        .getAsync(path(tenant))
+                        .getTenantAsync(tenant)
                         .thenAccept(tenantInfo -> {
                             if (!tenantInfo.isPresent()) {
                                 future.complete(false);
@@ -252,12 +248,6 @@ private CompletableFuture<Boolean> isSuperUserOrTenantAdmin(String tenant, Strin
         return future;
     }
 
-    private static String path(String... parts) {
-        StringBuilder sb = new StringBuilder();
-        sb.append(POLICY_ROOT);
-        Joiner.on('/').appendTo(sb, parts);
-        return sb.toString();
-    }
 
     @Override
     public CompletableFuture<Boolean> canAccessTenantAsync(KafkaPrincipal principal, Resource resource) {
diff --git a/kafka-impl/src/main/java/io/streamnative/pulsar/handlers/kop/utils/PulsarMessageBuilder.java b/kafka-impl/src/main/java/io/streamnative/pulsar/handlers/kop/utils/PulsarMessageBuilder.java
index fe8eb3a4d7..66624c99ac 100644
--- a/kafka-impl/src/main/java/io/streamnative/pulsar/handlers/kop/utils/PulsarMessageBuilder.java
+++ b/kafka-impl/src/main/java/io/streamnative/pulsar/handlers/kop/utils/PulsarMessageBuilder.java
@@ -110,7 +110,7 @@ public PulsarMessageBuilder sequenceId(long sequenceId) {
     }
 
     public Message<byte[]> getMessage() {
-        return MessageImpl.create(metadata, content, SCHEMA);
+        return MessageImpl.create(metadata, content, SCHEMA, null);
     }
 
 }
\ No newline at end of file
diff --git a/kafka-impl/src/test/java/io/streamnative/pulsar/handlers/kop/KafkaServiceConfigurationTest.java b/kafka-impl/src/test/java/io/streamnative/pulsar/handlers/kop/KafkaServiceConfigurationTest.java
index b0de3bca25..ff77bd7d43 100644
--- a/kafka-impl/src/test/java/io/streamnative/pulsar/handlers/kop/KafkaServiceConfigurationTest.java
+++ b/kafka-impl/src/test/java/io/streamnative/pulsar/handlers/kop/KafkaServiceConfigurationTest.java
@@ -132,7 +132,7 @@ public void testConfigurationUtilsStream() throws Exception {
         assertNotNull(kafkaServiceConfig);
         assertEquals(kafkaServiceConfig.getZookeeperServers(), zkServer);
         assertEquals(kafkaServiceConfig.isBrokerDeleteInactiveTopicsEnabled(), true);
-        assertEquals(kafkaServiceConfig.getBacklogQuotaDefaultLimitGB(), 18);
+        assertEquals(kafkaServiceConfig.getBacklogQuotaDefaultLimitGB(), 18.0);
         assertEquals(kafkaServiceConfig.getClusterName(), "usc");
         assertEquals(kafkaServiceConfig.getBrokerClientAuthenticationParameters(), "role:my-role");
         assertEquals(kafkaServiceConfig.getBrokerServicePort().get(), new Integer(7777));
@@ -229,7 +229,7 @@ public void testAllowedNamespaces() throws Exception {
         NamespaceResources namespaceResources = mock(NamespaceResources.class);
         when(pulsarService.getPulsarResources()).thenReturn(pulsarResources);
         when(pulsarResources.getNamespaceResources()).thenReturn(namespaceResources);
-        when(namespaceResources.getChildrenAsync(any(String.class)))
+        when(namespaceResources.listNamespacesAsync(any(String.class)))
                 .thenReturn(CompletableFuture.completedFuture(Arrays.asList("one", "two")));
         assertEquals(KafkaRequestHandler.expandAllowedNamespaces(conf.getKopAllowedNamespaces(),
                         "logged", pulsarService).get(),
diff --git a/pom.xml b/pom.xml
index b0a68954f1..5aca3bdea9 100644
--- a/pom.xml
+++ b/pom.xml
@@ -46,7 +46,7 @@
     <lombok.version>1.18.4</lombok.version>
     <mockito.version>2.22.0</mockito.version>
     <pulsar.group.id>io.streamnative</pulsar.group.id>
-    <pulsar.version>2.8.1.0</pulsar.version>
+    <pulsar.version>2.9.0-rc-202110221101</pulsar.version>
     <slf4j.version>1.7.25</slf4j.version>
     <spotbugs-annotations.version>3.1.8</spotbugs-annotations.version>
     <testcontainers.version>1.15.1</testcontainers.version>