diff --git a/install.md b/INSTALL.md
similarity index 98%
rename from install.md
rename to INSTALL.md
index 4051e4deb4..3eb544597e 100644
--- a/install.md
+++ b/INSTALL.md
@@ -13,6 +13,7 @@ If you encounter any problems/issues compiling Milvus from source, please refer
 
   If your operating system is not Ubuntu 18.04 or higher, we recommend you to pull a [docker image of Ubuntu 18.04](https://docs.docker.com/install/linux/docker-ce/ubuntu/) as your compilation environment.
   
+- GCC 7.0 or higher to support C++17
 - CMake 3.12 or higher
 
 ##### For GPU-enabled version, you will also need: