diff --git a/hutool-core/src/main/java/cn/hutool/core/map/MapUtil.java b/hutool-core/src/main/java/cn/hutool/core/map/MapUtil.java
index e0f3af043..b86ae6063 100755
--- a/hutool-core/src/main/java/cn/hutool/core/map/MapUtil.java
+++ b/hutool-core/src/main/java/cn/hutool/core/map/MapUtil.java
@@ -809,7 +809,7 @@ public class MapUtil {
 	 *
 	 * @param <K> 键和值类型
 	 * @param <V> 键和值类型
-	 * @param map Map对象，键值类型必须一致
+	 * @param map Map对象
 	 * @return 互换后的Map
 	 * @since 5.2.6
 	 */