diff --git a/jero-boot/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/config/sign/interceptor/SignAuthInterceptor.java b/jero-boot/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/config/sign/interceptor/SignAuthInterceptor.java
index 7ee3d932..c0c68ce0 100644
--- a/jero-boot/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/config/sign/interceptor/SignAuthInterceptor.java
+++ b/jero-boot/jero-boot-base/jero-boot-base-core/src/main/java/com/jero/config/sign/interceptor/SignAuthInterceptor.java
@@ -27,7 +27,7 @@ public class SignAuthInterceptor implements HandlerInterceptor {
     /**
      * 5分钟有效期
      */
-    private final static long MAX_EXPIRE = 5 * 60;
+    private static final long MAX_EXPIRE = 5 * 60L;
 
     @Override
     public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler) throws Exception {