diff --git a/src/pocketmine/Server.php b/src/pocketmine/Server.php
index 645dd7654..e2f035e76 100644
--- a/src/pocketmine/Server.php
+++ b/src/pocketmine/Server.php
@@ -1526,7 +1526,7 @@ class Server{
 				$poolSize = (int) $poolSize;
 			}
 
-			$this->asyncPool = new AsyncPool($this, $poolSize, (int) max(-1, (int) $this->getProperty("memory.async-worker-hard-limit", 1024)));
+			$this->asyncPool = new AsyncPool($this, $poolSize, (int) max(-1, (int) $this->getProperty("memory.async-worker-hard-limit", 256)));
 
 			if($this->getProperty("network.batch-threshold", 256) >= 0){
 				Network::$BATCH_THRESHOLD = (int) $this->getProperty("network.batch-threshold", 256);
diff --git a/src/pocketmine/resources/pocketmine.yml b/src/pocketmine/resources/pocketmine.yml
index 99cd38bd1..657c53aa7 100644
--- a/src/pocketmine/resources/pocketmine.yml
+++ b/src/pocketmine/resources/pocketmine.yml
@@ -40,7 +40,7 @@ memory:
  #AsyncWorker threads' hard memory limit in megabytes. Set to 0 to disable
  #This will crash the task currently executing on the worker if the task exceeds the limit
  #NOTE: THIS LIMIT APPLIES PER WORKER, NOT TO THE WHOLE PROCESS.
- async-worker-hard-limit: 1024
+ async-worker-hard-limit: 256
 
  #Period in ticks to check memory (default 1 second)
  check-rate: 20