diff --git a/README.md b/README.md
index a9b3cd6..1e20527 100644
--- a/README.md
+++ b/README.md
@@ -19,9 +19,11 @@
 ## [Demo](http://pan.fumiama.top:42412)
 
 ## Usage
-### Install [simple-http-server](https://github.com/fumiama/simple-http-server)
+### 1. Install [simple-http-server](https://github.com/fumiama/simple-http-server)
 Follow the instructions in [this repo](https://github.com/fumiama/simple-http-server) to install it.
-### Install CMoe
+### 2. Install [simple-protobuf](https://github.com/fumiama/simple-protobuf)
+Follow the instructions in [this repo](https://github.com/fumiama/simple-protobuf) to install it.
+### 3. Install CMoe
 ```bash
 git clone https://github.com/fumiama/CMoe-Counter.git
 cd CMoe-Counter
@@ -31,7 +33,7 @@ cmake ..
 make
 make install
 ```
-### Copy files
+### Copy files to web root
 1. Copy `favicon.ico`, `index.html`, `style.css` and the compiled binary `cmoe` into the same folder.
 2. Run `simple-http-server` by the command
 ```bash