diff --git a/en/device-dev/quick-start/quickstart-standard-package-environment.md b/en/device-dev/quick-start/quickstart-standard-package-environment.md
index 4ea30679f861982622088884015018ce15b9c4f0..1f9dc2dd1d96ff6304e05c66d03555d5e5590973 100644
--- a/en/device-dev/quick-start/quickstart-standard-package-environment.md
+++ b/en/device-dev/quick-start/quickstart-standard-package-environment.md
@@ -13,7 +13,7 @@
 The installation command is as follows:
 
 ```
-sudo apt-get update && sudo apt-get install binutils git git-lfs gnupg flex bison gperf build-essential zip curl zlib1g-dev gcc-multilib g++-multilib libc6-dev-i386 lib32ncurses5-dev x11proto-core-dev libx11-dev lib32z1-dev ccache libgl1-mesa-dev libxml2-utils xsltproc unzip m4 bc gnutls-bin python3.8 python3-pip
+sudo apt-get update && sudo apt-get install binutils git git-lfs gnupg flex bison gperf build-essential zip curl zlib1g-dev gcc-multilib g++-multilib libc6-dev-i386 lib32ncurses5-dev x11proto-core-dev libx11-dev lib32z1-dev ccache libgl1-mesa-dev libxml2-utils xsltproc unzip m4 bc gnutls-bin python3.8 python3-pip ruby
 ```
 
 >![](../public_sys-resources/icon-note.gif) **NOTE:** 
diff --git a/zh-cn/device-dev/quick-start/quickstart-standard-package-environment.md b/zh-cn/device-dev/quick-start/quickstart-standard-package-environment.md
index f675c28cdb54e358d3cfbcf84c7b19ccdf766e02..46b95a8669b8bec71eb938447446ba59e1c5f145 100644
--- a/zh-cn/device-dev/quick-start/quickstart-standard-package-environment.md
+++ b/zh-cn/device-dev/quick-start/quickstart-standard-package-environment.md
@@ -13,7 +13,7 @@
 安装命令如下：
 
 ```
-sudo apt-get update && sudo apt-get install binutils git git-lfs gnupg flex bison gperf build-essential zip curl zlib1g-dev gcc-multilib g++-multilib libc6-dev-i386 lib32ncurses5-dev x11proto-core-dev libx11-dev lib32z1-dev ccache libgl1-mesa-dev libxml2-utils xsltproc unzip m4 bc gnutls-bin python3.8 python3-pip
+sudo apt-get update && sudo apt-get install binutils git git-lfs gnupg flex bison gperf build-essential zip curl zlib1g-dev gcc-multilib g++-multilib libc6-dev-i386 lib32ncurses5-dev x11proto-core-dev libx11-dev lib32z1-dev ccache libgl1-mesa-dev libxml2-utils xsltproc unzip m4 bc gnutls-bin python3.8 python3-pip ruby
 ```
 
 >![](../public_sys-resources/icon-note.gif) **说明：**