diff --git a/src/main/resources/application.yaml b/src/main/resources/application.yaml
index dd006ac..1682f40 100644
--- a/src/main/resources/application.yaml
+++ b/src/main/resources/application.yaml
@@ -34,7 +34,6 @@ management:
       probability: ${ZIPKIN_SAMPLER_PROBABILITY:1.0}
 
 pulsar:
-  hostname: ${HOSTNAME:podId}
   ssePollDelay: ${PULSAR_SSE_POLL_DELAY:1000}
   sseTimeout: ${PULSAR_SSE_TIMEOUT:60000}
   sseBatchSize: ${PULSAR_SSE_BATCH_SIZE:100}
@@ -50,7 +49,7 @@ pulsar:
 horizon:
   cache:
     enabled: true
-    kubernetesServiceDns: ${PULSAR_CACHE_SERVICE_DNS:quasar-discovery-headless.integration.svc.cluster.local}
+    kubernetesServiceDns: ${PULSAR_CACHE_SERVICE_DNS:horizon-quasar-discovery-headless.integration.svc.cluster.local}
     deDuplication:
       enabled: ${PULSAR_CACHE_DE_DUPLICATION_ENABLED:true}
       defaultCacheName: pulsar-deduplication