fixed #569

FeeiCN · Sep 13, 2017 · 6cf80dc · 6cf80dc
1 parent 23278f8
commit 6cf80dc
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diff --git a/docs/installation.md b/docs/installation.md
@@ -19,12 +19,18 @@ Cobra可运行在以下Python版本
   - 3.6+
 
 ## 特殊依赖
+> 以下系统需要单独安装依赖。
 
 #### macOS系统依赖
 ```
 brew install grep findutils
 ```
 
+#### Ubuntu系统依赖
+```
+apt-get install flex bison
+```
+
 ## 安装方法
 ```bash
 git clone https://github.com/wufeifei/cobra.git && cd cobra