diff --git a/README.md b/README.md
index 4835699..b524439 100644
--- a/README.md
+++ b/README.md
@@ -5,6 +5,7 @@ This project is about to digitally control your character sheet from the book "L
 Some dependencies are inside the "external" directory. The followings are inside:
 - GLFW: windowing
 - Spdlog: logging the app.
+- Catch2
 
 The others are:
 - jemalloc