diff --git a/src/main/resources/example-application.yaml b/src/main/resources/example-application.yaml
index 3c7a7e5..ded7eb4 100644
--- a/src/main/resources/example-application.yaml
+++ b/src/main/resources/example-application.yaml
@@ -21,4 +21,4 @@ spring:
 wzp:
   filemanager:
     save-path: "./file" # file save path
-    hmac-key: "V(LWJ6D5*4%,Hk{1" # jwt key(can be any random string)
\ No newline at end of file
+    hmac-key: "fsv2" # jwt key(can be any random string)
\ No newline at end of file