diff --git a/composer.json b/composer.json
index b180408..9566bbd 100644
--- a/composer.json
+++ b/composer.json
@@ -27,7 +27,7 @@
         "topthink/think-view": "^1.0",
         "topthink/think-captcha": "^3.0",
         "phpmailer/phpmailer": "^6.6",
-        "lcobucci/jwt": "^3.4",
+        "lcobucci/jwt": "3.3.3",
         "overtrue/pinyin": "^4.0"
     },
     "require-dev": {