diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7ec2d39..f52313d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -129,7 +128,8 @@ if(VK_BOOTSTRAP_TEST)
         endif()
     endif()
 
-    add_subdirectory(ext)
+    find_package(glfw3)
+    find_package(Catch2 3)
     add_subdirectory(tests)
     add_subdirectory(example)
 endif ()