diff --git a/CMakeLists.txt b/CMakeLists.txt
index 37021bd..b9709d3 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -6,7 +6,7 @@ cmake_minimum_required (VERSION 3.8)
 project ("OpenGLTests")
 
 find_package(OpenGL REQUIRED)
-find_package(glfw3 REQUIRED)
+find_package(glfw3 3.4.0 REQUIRED)
 
 # Include sub-projects.
 add_subdirectory ("src")