diff --git a/src/main/java/com/serliunx/statemanagement/machine/AbstractStateMachine.java b/src/main/java/com/serliunx/statemanagement/machine/AbstractStateMachine.java
index 74a1494..4481394 100644
--- a/src/main/java/com/serliunx/statemanagement/machine/AbstractStateMachine.java
+++ b/src/main/java/com/serliunx/statemanagement/machine/AbstractStateMachine.java
@@ -1,8 +1,5 @@
 package com.serliunx.statemanagement.machine;
 
-import com.serliunx.statemanagement.machine.handler.StateHandler;
-import com.serliunx.statemanagement.machine.handler.StateHandlerProcessParams;
-import com.serliunx.statemanagement.machine.handler.StateHandlerWrapper;
 import com.serliunx.statemanagement.manager.AbstractStateManager;
 
 import java.util.List;