diff --git a/README.md b/README.md
index 9c7a386..e464839 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ This project is used to generate `CMakeLists.txt` for OpenFOAM projects.
 
 #### Installation Guide
 0. Activate the required OpenFOAM environment (otherwise the installation will fail).
-1. Obtain the project source code: `git clone https://github.com/zhyang-dev/of_cmake_config.git`
+1. Obtain the project source code: `git clone --depth=1 https://github.com/zhyang-dev/of_cmake_config.git`
 2. Install: `cd of_cmake_config && ./install`
 
 #### Usage Instructions
@@ -21,4 +21,4 @@ This project is used to generate `CMakeLists.txt` for OpenFOAM projects.
 - `vim` + `coc-clangd`
 
 The following demonstrates the second scenario based on the icoFoam case.  
-![Video Demo](demo/occ_demo.gif)
\ No newline at end of file
+![Video Demo](demo/occ_demo.gif)