diff --git a/README-CN.md b/README-CN.md
index 12ac7b9ee74a1c3aab28c75290c9a6b231464517..a6dfefc47ac98db6d222021923849be6ac2a8549 100644
--- a/README-CN.md
+++ b/README-CN.md
@@ -52,7 +52,7 @@ TDengine 还提供一组辅助工具软件 taosTools，目前它包含 taosBench
 ### Ubuntu 18.04 及以上版本 & Debian：
 
 ```bash
-sudo apt-get install -y gcc cmake build-essential git libssl-dev
+sudo apt-get install -y gcc cmake build-essential git libssl-dev libgflags2.2 libgflags-dev
 ```
 
 #### 为 taos-tools 安装编译需要的软件
diff --git a/README.md b/README.md
index 5d4bb309a439ec69fb8e8bc698b57782431050a9..a088404c85c414e46a7b9a056c3d89aaa65e87a8 100644
--- a/README.md
+++ b/README.md
@@ -60,7 +60,7 @@ To build TDengine, use [CMake](https://cmake.org/) 3.0.2 or higher versions in t
 ### Ubuntu 18.04 and above or Debian
 
 ```bash
-sudo apt-get install -y gcc cmake build-essential git libssl-dev
+sudo apt-get install -y gcc cmake build-essential git libssl-dev libgflags2.2 libgflags-dev
 ```
 
 #### Install build dependencies for taosTools