diff --git a/liteflow-core/src/main/java/com/yomahub/liteflow/entity/data/DataBus.java b/liteflow-core/src/main/java/com/yomahub/liteflow/entity/data/DataBus.java
index ccc87bfe1..8051fc0bd 100644
--- a/liteflow-core/src/main/java/com/yomahub/liteflow/entity/data/DataBus.java
+++ b/liteflow-core/src/main/java/com/yomahub/liteflow/entity/data/DataBus.java
@@ -47,7 +47,7 @@ public class DataBus {
 		QUEUE = IntStream.range(0, slotSize - 1).boxed().collect(Collectors.toCollection(ConcurrentLinkedQueue::new));
 	}
 
-	public synchronized static int offerSlot(Class<? extends Slot> slotClazz) {
+	public static int offerSlot(Class<? extends Slot> slotClazz) {
 		try {
 			Slot slot = slotClazz.newInstance();
 			Integer slotIndex = QUEUE.poll();