diff --git a/backend/ruoyi-admin/src/main/resources/application-prod.yml b/backend/ruoyi-admin/src/main/resources/application-prod.yml
index 60cf8a72..b692c6d4 100644
--- a/backend/ruoyi-admin/src/main/resources/application-prod.yml
+++ b/backend/ruoyi-admin/src/main/resources/application-prod.yml
@@ -1,3 +1,7 @@
+--- # Sa-Token（生产显式固定 JWT 密钥，禁止使用随机密钥，否则已登录会话会整体失效）
+sa-token:
+  jwt-secret-key: abcdefghijklmnopqrstuvwxyz
+
 --- # 临时文件存储位置 避免临时文件被系统清理报错
 spring.servlet.multipart.location: /ruoyi/server/temp