diff --git a/docs/clients-zh.md b/docs/clients-zh.md
index b4fe74c..6b13ad8 100644
--- a/docs/clients-zh.md
+++ b/docs/clients-zh.md
@@ -326,6 +326,8 @@ OS X (macOS) 用户： 如果可以成功地使用 IPsec/L2TP 模式连接，但
 
 如果你的 iOS 13/14, macOS 10.15 (Catalina) 或者 macOS 11 (Big Sur) 设备无法连接，请尝试以下步骤：编辑 VPN 服务器上的 `/etc/ipsec.conf`。找到 `sha2-truncbug=yes` 并将它替换为 `sha2-truncbug=no`。保存修改并运行 `service ipsec restart`。然后重新连接 VPN。
 
+另外，macOS Big Sur 11.0 用户应该更新到版本 11.1 或以上，以修复 VPN 连接的某些问题。要检查 macOS 版本并安装更新，请看<a href="https://www.businessinsider.com/how-to-check-mac-os-version" target="_blank">这里</a>。
+
 ### iOS/Android 睡眠模式
 
 为了节约电池，iOS 设备 (iPhone/iPad) 在屏幕变黑（睡眠模式）之后不久就会自动断开 Wi-Fi 连接。这会导致 IPsec VPN 断开。该行为是被 <a href="https://discussions.apple.com/thread/2333948" target="_blank">故意设计的</a> 并且不能被配置。如果你需要 VPN 在设备唤醒后自动重连，可以另外尝试使用 <a href="https://github.com/Nyr/openvpn-install" target="_blank">OpenVPN</a>，它支持 <a href="https://docs.openvpn.net/connecting/connecting-to-access-server-with-apple-ios/faq-regarding-openvpn-connect-ios/" target="_blank">一些选项</a> 比如 "Reconnect on Wakeup" 和 "Seamless Tunnel"。
diff --git a/docs/clients.md b/docs/clients.md
index 6073214..84fd28d 100644
--- a/docs/clients.md
+++ b/docs/clients.md
@@ -325,6 +325,8 @@ After trying the steps above, if your computer is still not sending traffic over
 
 If your iOS 13/14, macOS 10.15 (Catalina) or macOS 11 (Big Sur) device cannot connect, try these steps: Edit `/etc/ipsec.conf` on the VPN server. Find `sha2-truncbug=yes` and replace it with `sha2-truncbug=no`. Save the file and run `service ipsec restart`. Then reconnect the VPN.
 
+In addition, users running macOS Big Sur 11.0 should update to version 11.1 or newer, to fix some issues with VPN connections. To check your macOS version and update, refer to <a href="https://www.businessinsider.com/how-to-check-mac-os-version" target="_blank">this article</a>.
+
 ### iOS/Android sleep mode
 
 To save battery, iOS devices (iPhone/iPad) will automatically disconnect Wi-Fi shortly after the screen turns off (sleep mode). As a result, the IPsec VPN disconnects. This behavior is <a href="https://discussions.apple.com/thread/2333948" target="_blank">by design</a> and cannot be configured. If you need the VPN to auto-reconnect when the device wakes up, try <a href="https://github.com/Nyr/openvpn-install" target="_blank">OpenVPN</a> instead, which <a href="https://docs.openvpn.net/connecting/connecting-to-access-server-with-apple-ios/faq-regarding-openvpn-connect-ios/" target="_blank">has support for options</a> such as "Reconnect on Wakeup" and "Seamless Tunnel".