diff --git a/session/redis/provider.go b/session/redis/provider.go
index fa80b24..d18f8c9 100644
--- a/session/redis/provider.go
+++ b/session/redis/provider.go
@@ -67,10 +67,17 @@ func (rsp *SessionProvider) RenewAccessToken(ctx *ginx.Context) error {
 	if err != nil {
 		return err
 	}
+
+	// 更新 claims 中的过期时间为当前时间加上配置的过期时间
 	claims := jwtClaims.Data
+	claims.Expiration = time.Now().Add(rsp.expiration).UnixMilli()
+
+	// 生成新的 access token
 	accessToken, err := rsp.m.GenerateAccessToken(claims)
 	rsp.TokenCarrier.Inject(ctx, accessToken)
-	return err
+
+	// Redis 续期 Session
+	return rsp.client.Expire(ctx, sessionKey(claims.SSID), rsp.expiration).Err()
 }
 
 // NewSession 的时候，要先把这个 data 写入到对应的 token 里面
diff --git a/session/redis/session.go b/session/redis/session.go
index 327269e..01964a9 100644
--- a/session/redis/session.go
+++ b/session/redis/session.go
@@ -76,8 +76,12 @@ func newRedisSession(
 	client redis.Cmdable, cl session.Claims) *Session {
 	return &Session{
 		client:     client,
-		key:        "session:" + ssid,
+		key:        sessionKey(ssid),
 		expiration: expiration,
 		claims:     cl,
 	}
 }
+
+func sessionKey(ssid string) string {
+	return "session:" + ssid
+}