diff --git a/README.md b/README.md
index cec9b44..df6d64c 100644
--- a/README.md
+++ b/README.md
@@ -242,4 +242,4 @@ class IndexController extends AbstractController
 例如：`$this->jwt->getParserData()`
 
 ##### 12、建议
-> 目前 `jwt` 抛出的异常目前有两种类型 `Phper666\JwtAuth\Exception\TokenValidException` 和 `Phper666\JwtAuth\Exception\JWTException,TokenValidException` 异常为 token 验证失败的异常，会抛出 `401` ,`JWTException` 异常会抛出 `500`，最好你们自己在项目异常重新返回错误信息
+> 目前 `jwt` 抛出的异常目前有两种类型 `Phper666\JwtAuth\Exception\TokenValidException` 和 `Phper666\JwtAuth\Exception\JWTException,TokenValidException` 异常为 token 验证失败的异常，会抛出 `401` ,`JWTException` 异常会抛出 `400`，最好你们自己在项目异常重新返回错误信息
diff --git a/src/Jwt.php b/src/Jwt.php
index 166aca2..2259ae8 100644
--- a/src/Jwt.php
+++ b/src/Jwt.php
@@ -39,7 +39,7 @@ public function getToken(array $claims, $isInsertSsoBlack = true)
             $uniqid = uniqid();
         } else { // 单点登录
             if (empty($claims[$this->ssoKey])) {
-                throw new JWTException("There is no {$this->ssoKey} key in the claims", 500);
+                throw new JWTException("There is no {$this->ssoKey} key in the claims", 400);
             }
             $uniqid = $claims[$this->ssoKey];
         }
@@ -74,7 +74,7 @@ public function getToken(array $claims, $isInsertSsoBlack = true)
     public function refreshToken()
     {
         if (!$this->getHeaderToken()) {
-            throw new JWTException('A token is required', 500);
+            throw new JWTException('A token is required', 400);
         }
         $claims = $this->blacklist->add($this->getTokenObj());
         unset($claims['iat']);
diff --git a/src/Traits/CommonTrait.php b/src/Traits/CommonTrait.php
index 6aa3577..4ac62c3 100644
--- a/src/Traits/CommonTrait.php
+++ b/src/Traits/CommonTrait.php
@@ -166,7 +166,7 @@ public function verifyToken(Token $token)
     {
         $alg = $token->getHeader('alg');
         if (empty($this->supportedAlgs[$alg])) {
-            throw new TokenValidException('Algorithm not supported', 500);
+            throw new TokenValidException('Algorithm not supported', 401);
         }
         /** @var Signer $signer */
         $signer = new $this->supportedAlgs[$alg];
@@ -210,7 +210,7 @@ public function getHeaderToken()
             return $token;
         }
 
-        throw new JWTException('A token is required', 500);
+        throw new JWTException('A token is required', 400);
     }
 
     /**