diff --git a/README.md b/README.md
index d9e2b3c..608cfbe 100644
--- a/README.md
+++ b/README.md
@@ -7,6 +7,7 @@ A PushGP implementation in Haskell
     * [x] Write tests for every function.
     * [x] tests/ are just copied from make-grade, need to write for this project.
     * [ ] Included examples of basic assertions, QuickCheck, Hspec, hspec-quickcheck.
+* [ ] Look at Lenses library for abstraction
 
 ## Design considerations
 The biggest design constraint is that for the exec stack (but not data stacks)