diff --git a/hutool-core/src/main/java/org/dromara/hutool/core/map/BiMap.java b/hutool-core/src/main/java/org/dromara/hutool/core/map/BiMap.java
index 3f22f430c..da36859c1 100644
--- a/hutool-core/src/main/java/org/dromara/hutool/core/map/BiMap.java
+++ b/hutool-core/src/main/java/org/dromara/hutool/core/map/BiMap.java
@@ -51,7 +51,6 @@ public class BiMap<K, V> extends MapWrapper<K, V> {
 			}
 			this.inverse.put(value, key);
 		}
-
 		return oldValue;
 	}