diff --git a/README.md b/README.md
index 6700c63..aaf120c 100644
--- a/README.md
+++ b/README.md
@@ -3,9 +3,10 @@
 A game engine written in Common Lisp.
 
 ## Dependencies
-- cl-sdl2
-- cl-opengl
-- trivial-types
+- Currently requires [SBCL](http://www.sbcl.org/)
+- [cl-sdl2](https://github.com/lispgames/cl-sdl2)
+- [cl-opengl](https://github.com/3b/cl-opengl)
+- [trivial-types](https://github.com/m2ym/trivial-types)
 - [objective-lisp](https://bytes.keithhacks.cyou/keith/objective-lisp)
-- 3d-vectors
-- 3d-matrices
+- [3d-vectors](https://github.com/Shinmera/3d-vectors)
+- [3d-matrices](https://github.com/Shinmera/3d-matrices)