diff --git a/README.md b/README.md
index ce35585..fc1bd5e 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ This project is licensed under the terms of the [GPLv2](https://www.gnu.org/lice
 ### Compiling sources
 
 The only runtime dependency is qtbase ≥ 5.6.
-In order to build CMake ≥ 3.0.2 and [lxqt-build-tools](https://github.com/lxde/lxqt-build-tools/) >= 0.3 are needed as well as Git to pull translations and optionally latest VCS checkouts.
+In order to build CMake ≥ 3.0.2 and [lxqt-build-tools](https://github.com/lxde/lxqt-build-tools/) >= 0.4.0 are needed as well as Git to pull translations and optionally latest VCS checkouts.
 
 Code configuration is handled by CMake. CMake variable `CMAKE_INSTALL_PREFIX` will normally have to be set to `/usr`, depending on the way library paths are dealt with on 64bit systems variables like `CMAKE_INSTALL_LIBDIR` may have to be set as well.