diff --git a/README.md b/README.md
index 1c9b1d080..3528645cc 100644
--- a/README.md
+++ b/README.md
@@ -63,7 +63,7 @@
# Description
-EhViewer fork dedicated to lightweight and high-performance
+A modern EhViewer fork dedicated to high-performance
with [Material Design 3](https://m3.material.io/)
and [Dynamic Color](https://m3.material.io/styles/color/dynamic-color/overview) Support
@@ -73,7 +73,9 @@ and [Dynamic Color](https://m3.material.io/styles/color/dynamic-color/overview)
| Flavor | Minimum Android Version | Notes |
|-------------|-------------------------|-------------------------------------------|
| Default | 8.0 | Animated WebP support requires Android 9+ |
-| Marshmallow | 6.0 | Limited support, no guarantees |
+| Marshmallow | 6.0* | Limited support, no guarantees |
+
+*Devices running Android 6 need to have the [ISRG Root X1](https://letsencrypt.org/certs/isrgrootx1.pem) certificate installed
diff --git a/docs/README/zh-cn.md b/docs/README/zh-cn.md
index 691758a67..7d6a5a630 100644
--- a/docs/README/zh-cn.md
+++ b/docs/README/zh-cn.md
@@ -63,7 +63,7 @@
# 描述
-致力于轻量化与良好性能表现的 EhViewer 分支
+致力于高性能的现代 EhViewer 分支
已针对性适配 Material Design 3 及其动态取色系统
@@ -72,7 +72,9 @@
| 变种 | 最低 Android 版本 | 备注 |
|-------------|---------------|-------------------------|
| Default | 8.0 | 动画 WebP 支持需要 Android 9+ |
-| Marshmallow | 6.0 | 有限支持，无保证 |
+| Marshmallow | 6.0* | 有限支持，无保证 |
+
+*运行 Android 6 的设备需安装 [ISRG Root X1](https://letsencrypt.org/certs/isrgrootx1.pem) 证书