diff --git a/examples/conf-quickstart/druid/broker/runtime.properties b/examples/conf-quickstart/druid/broker/runtime.properties
index a01ab07340d..bb2aababe54 100644
--- a/examples/conf-quickstart/druid/broker/runtime.properties
+++ b/examples/conf-quickstart/druid/broker/runtime.properties
@@ -3,7 +3,7 @@ druid.port=8082
 
 # HTTP server threads
 druid.broker.http.numConnections=5
-druid.server.http.numThreads=8
+druid.server.http.numThreads=9
 
 # Processing threads and buffers
 druid.processing.buffer.sizeBytes=256000000
diff --git a/examples/conf-quickstart/druid/historical/runtime.properties b/examples/conf-quickstart/druid/historical/runtime.properties
index 40342dcb0cc..8d8633d53ac 100644
--- a/examples/conf-quickstart/druid/historical/runtime.properties
+++ b/examples/conf-quickstart/druid/historical/runtime.properties
@@ -2,7 +2,7 @@ druid.service=druid/historical
 druid.port=8083
 
 # HTTP server threads
-druid.server.http.numThreads=8
+druid.server.http.numThreads=9
 
 # Processing threads and buffers
 druid.processing.buffer.sizeBytes=256000000
diff --git a/examples/conf-quickstart/druid/middleManager/runtime.properties b/examples/conf-quickstart/druid/middleManager/runtime.properties
index cd250f33495..422b94387ff 100644
--- a/examples/conf-quickstart/druid/middleManager/runtime.properties
+++ b/examples/conf-quickstart/druid/middleManager/runtime.properties
@@ -9,7 +9,7 @@ druid.indexer.runner.javaOpts=-server -Xmx2g -Duser.timezone=UTC -Dfile.encoding
 druid.indexer.task.baseTaskDir=var/druid/task
 
 # HTTP server threads
-druid.server.http.numThreads=8
+druid.server.http.numThreads=9
 
 # Processing threads and buffers
 druid.processing.buffer.sizeBytes=256000000
diff --git a/examples/conf-quickstart/tranquility/server.json b/examples/conf-quickstart/tranquility/server.json
index 0072b64777e..cbc1d14e772 100644
--- a/examples/conf-quickstart/tranquility/server.json
+++ b/examples/conf-quickstart/tranquility/server.json
@@ -69,6 +69,6 @@
     "druid.discovery.curator.path" : "/druid/discovery",
     "druid.selectors.indexing.serviceName" : "druid/overlord",
     "http.port" : "8200",
-    "http.threads" : "8"
+    "http.threads" : "9"
   }
 }