diff --git a/README.md b/README.md
index b4ebcc8..4e5b825 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,7 @@ This repo was developed in the following environment:
 * Windows 10 64-bit
 * Microsoft Visual Studio 2019 on x64 platform (C++14)
 * CMake 3.19.0
+* DXViewer 3.1.0
 
 You should update submodules before creating a project with cmake.