diff --git a/src/org/redkale/net/Servlet.java b/src/org/redkale/net/Servlet.java
index e5ca89825..53ed1e250 100644
--- a/src/org/redkale/net/Servlet.java
+++ b/src/org/redkale/net/Servlet.java
@@ -18,7 +18,7 @@ import java.io.IOException;
  * @param <R> Request的子类型
  * @param <P> Response的子类型
  */
-public abstract class Servlet<C extends Context, R extends Request<? extends C>, P extends Response<R>> {
+public abstract class Servlet<C extends Context, R extends Request<C>, P extends Response<R>> {
 
     public void init(C context, AnyValue config) {
     }