diff --git a/README.md b/README.md
index 32c865d0..8cb735ed 100755
--- a/README.md
+++ b/README.md
@@ -1,8 +1,6 @@
 ![](https://github.com/an-tao/drogon/wiki/images/drogon-white.jpg)
 
-[![Build Status](https://travis-ci.com/an-tao/drogon.svg?branch=master)](https://travis-ci.com/an-tao/drogon)
-![Build Status](https://github.com/an-tao/drogon/workflows/Build%20Drogon/badge.svg?branch=master)
-[![Total alerts](https://img.shields.io/lgtm/alerts/g/an-tao/drogon.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/an-tao/drogon/alerts/)
+[![Build Status](https://github.com/an-tao/drogon/workflows/Build%20Drogon/badge.svg?branch=master)](https://github.com/drogonframework/drogon/actions)
 [![Join the chat at https://gitter.im/drogon-web/community](https://badges.gitter.im/drogon-web/community.svg)](https://gitter.im/drogon-web/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![Join the telegram group at https://t.me/joinchat/_mMNGv0748ZkMDAx](https://img.shields.io/badge/Telegram-2CA5E0?style=flat&logo=telegram&logoColor=white)](https://t.me/joinchat/_mMNGv0748ZkMDAx)
 [![Docker image](https://img.shields.io/badge/Docker-image-blue.svg)](https://cloud.docker.com/u/drogonframework/repository/docker/drogonframework/drogon)
diff --git a/README.zh-CN.md b/README.zh-CN.md
index 13758b09..d2060f6a 100755
--- a/README.zh-CN.md
+++ b/README.zh-CN.md
@@ -1,8 +1,6 @@
 ![](https://github.com/an-tao/drogon/wiki/images/drogon-white.jpg)
 
-[![Build Status](https://travis-ci.com/an-tao/drogon.svg?branch=master)](https://travis-ci.com/an-tao/drogon)
-![Build Status](https://github.com/an-tao/drogon/workflows/Build%20Drogon/badge.svg?branch=master)
-[![Total alerts](https://img.shields.io/lgtm/alerts/g/an-tao/drogon.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/an-tao/drogon/alerts/)
+[![Build Status](https://github.com/an-tao/drogon/workflows/Build%20Drogon/badge.svg?branch=master)](https://github.com/drogonframework/drogon/actions)
 [![Join the chat at https://gitter.im/drogon-web/community](https://badges.gitter.im/drogon-web/community.svg)](https://gitter.im/drogon-web/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![Join the telegram group at https://t.me/joinchat/_mMNGv0748ZkMDAx](https://img.shields.io/badge/Telegram-2CA5E0?style=flat&logo=telegram&logoColor=white)](https://t.me/joinchat/_mMNGv0748ZkMDAx)
 [![Docker image](https://img.shields.io/badge/Docker-image-blue.svg)](https://cloud.docker.com/u/drogonframework/repository/docker/drogonframework/drogon)
@@ -193,6 +191,8 @@ class User : public drogon::HttpController<User>
 
 欢迎您的贡献。 请阅读[贡献指南](CONTRIBUTING.md)以获取更多的信息。
 
+<a href="https://github.com/drogonframework/drogon/graphs/contributors"><img src="https://contributors-svg.opencollective.com/drogon/contributors.svg?width=890&button=false" alt="Code contributors" /></a>
+
 ## QQ交流群：1137909452
 
 欢迎交流探讨。
diff --git a/README.zh-TW.md b/README.zh-TW.md
index 47788ae0..b0eb982a 100644
--- a/README.zh-TW.md
+++ b/README.zh-TW.md
@@ -1,8 +1,6 @@
 ![](https://github.com/an-tao/drogon/wiki/images/drogon-white.jpg)
 
-[![Build Status](https://travis-ci.com/an-tao/drogon.svg?branch=master)](https://travis-ci.com/an-tao/drogon)
-![Build Status](https://github.com/an-tao/drogon/workflows/Build%20Drogon/badge.svg?branch=master)
-[![Total alerts](https://img.shields.io/lgtm/alerts/g/an-tao/drogon.svg?logo=lgtm&logoWidth=18)](https://lgtm.com/projects/g/an-tao/drogon/alerts/)
+[![Build Status](https://github.com/an-tao/drogon/workflows/Build%20Drogon/badge.svg?branch=master)](https://github.com/drogonframework/drogon/actions)
 [![Join the chat at https://gitter.im/drogon-web/community](https://badges.gitter.im/drogon-web/community.svg)](https://gitter.im/drogon-web/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![Join the telegram group at https://t.me/joinchat/_mMNGv0748ZkMDAx](https://img.shields.io/badge/Telegram-2CA5E0?style=flat&logo=telegram&logoColor=white)](https://t.me/joinchat/_mMNGv0748ZkMDAx)
 [![Docker image](https://img.shields.io/badge/Docker-image-blue.svg)](https://cloud.docker.com/u/drogonframework/repository/docker/drogonframework/drogon)
@@ -193,6 +191,8 @@ class User : public drogon::HttpController<User>
 
 歡迎您的貢獻。請閱讀[貢獻指南](CONTRIBUTING.md)以獲取更多的信息。
 
+<a href="https://github.com/drogonframework/drogon/graphs/contributors"><img src="https://contributors-svg.opencollective.com/drogon/contributors.svg?width=890&button=false" alt="Code contributors" /></a>
+
 ## QQ交流群：1137909452
 
 歡迎交流探討。
diff --git a/trantor b/trantor
index e8e38874..2c6e027b 160000
--- a/trantor
+++ b/trantor
@@ -1 +1 @@
-Subproject commit e8e3887435dcfb310263c588743be1b3746193be
+Subproject commit 2c6e027b30f2e0373680224c1d751bc19d1a0ecc