diff --git a/jwt.go b/jwt.go
index 2a88609..39f0160 100644
--- a/jwt.go
+++ b/jwt.go
@@ -38,7 +38,7 @@ func (j *ownJwt) Generate(signMethod jwt.SigningMethod, secret string, claims jw
 	} else {
 		token = jwt.NewWithClaims(signMethod, claims)
 	}
-	return token.SignedString(secret)
+	return token.SignedString([]byte(secret))
 }
 
 // Validate 验证token
@@ -53,7 +53,7 @@ func (j *ownJwt) Validate(inputToken string, secret string) (jwt.Claims, error)
 	)
 
 	if token, err = jwt.Parse(inputToken, func(tokenInfo *jwt.Token) (interface{}, error) {
-		return secret, nil
+		return []byte(secret), nil
 	}); nil != err {
 		return nil, errors.New("token parse fail : " + err.Error())
 	}