diff --git a/liteflow-spring-boot-starter/src/main/resources/META-INF/liteflow-default.properties b/liteflow-spring-boot-starter/src/main/resources/META-INF/liteflow-default.properties
index 8dd42950b..fcdaf5d7b 100644
--- a/liteflow-spring-boot-starter/src/main/resources/META-INF/liteflow-default.properties
+++ b/liteflow-spring-boot-starter/src/main/resources/META-INF/liteflow-default.properties
@@ -4,7 +4,7 @@ liteflow.rule-source=config/flow.xml
 liteflow.zk-node=/lite-flow/flow
 liteflow.slot-size=1024
 liteflow.when-max-wait-seconds=15
-liteflow.when-max-workers=4
+liteflow.when-max-workers=16
 liteflow.when-queue-limit=512
 liteflow.parse-on-start=true
 liteflow.retry-count=0