diff --git a/README.md b/README.md
index 22c63cec..6dde2029 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@
 - [CLI](https://github.com/QingWei-Li/docsify-cli)
 
 ## Features
-- Easy and lightweight (~12kB gzipped)
+- Easy and lightweight (~12kb gzipped)
 - Custom themes
 - No build
 
diff --git a/docs/README.md b/docs/README.md
index 0dfd45b0..791885be 100644
--- a/docs/README.md
+++ b/docs/README.md
@@ -7,7 +7,7 @@
 </p>
 
 ## Features
-- Easy and lightweight (~12kB gzipped)
+- Easy and lightweight (~12kb gzipped)
 - Custom themes
 - No build
 
diff --git a/docs/zh-cn.md b/docs/zh-cn.md
index a320e1af..2e76fb7e 100644
--- a/docs/zh-cn.md
+++ b/docs/zh-cn.md
@@ -9,7 +9,7 @@
 ## 特性
 - 无需构建，写完 markdown 直接发布
 - 支持自定义主题
-- 容易使用并且轻量 (~12kB gzipped)
+- 容易使用并且轻量 (~12kb gzipped)
 
 ## 快速上手