diff --git a/CMakeLists.txt b/CMakeLists.txt
index 497a6f350e..9af22a671d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,9 +14,9 @@ endif()
 project(cdt)
 
 set(VERSION_MAJOR 3)
-set(VERSION_MINOR 2)
+set(VERSION_MINOR 1)
 set(VERSION_PATCH 0)
-set(VERSION_SUFFIX dev)
+set(VERSION_SUFFIX rc1)
 
 if (VERSION_SUFFIX)
    set(VERSION_FULL "${VERSION_MAJOR}.${VERSION_MINOR}.${VERSION_PATCH}-${VERSION_SUFFIX}")
diff --git a/README.md b/README.md
index 6feef19e88..be862e43e8 100644
--- a/README.md
+++ b/README.md
@@ -15,8 +15,8 @@ CDT currently supports Linux x86_64 Debian packages. Visit the [release page](ht
 The latest version of CDT is 3.0. Download the appropriate version of the Debian package and then install as follows:
 
 ```sh
-wget https://github.com/AntelopeIO/cdt/releases/download/v3.0.1/cdt_3.0.1_amd64.deb
-sudo apt install ./cdt_3.0.1_amd64.deb
+wget https://github.com/AntelopeIO/cdt/releases/download/v3.1.0-rc1/cdt_3.1.0-rc1_amd64.deb
+sudo apt install ./cdt_3.1.0-rc1_amd64.deb
 ```
 ### Debian package uninstall