diff --git a/src/main/java/com/knowledge/base/infrastructure/util/ThreadPoolUtil.java b/src/main/java/com/knowledge/base/infrastructure/util/ThreadPoolUtil.java
index 641ac2a..7a744f4 100644
--- a/src/main/java/com/knowledge/base/infrastructure/util/ThreadPoolUtil.java
+++ b/src/main/java/com/knowledge/base/infrastructure/util/ThreadPoolUtil.java
@@ -12,7 +12,7 @@ import java.util.concurrent.*;
 public class ThreadPoolUtil {
 
     private static final int CORE_POOL_SIZE = Runtime.getRuntime().availableProcessors();
-    private static final int MAX_POOL_SIZE = CORE_POOL_SIZE * 2;
+    private static final int MAX_POOL_SIZE = CORE_POOL_SIZE * 2 + 1;
     private static final int QUEUE_CAPACITY = 500;
     private static final long KEEP_ALIVE_TIME = 60L;