diff --git a/README.md b/README.md
index 4cbad19..456cced 100644
--- a/README.md
+++ b/README.md
@@ -9,6 +9,7 @@ however with little effort it can support other simulations as well.
 
 ## TODO
 - [x] Prune old CSiBORG1 merger tree things.
+- [ ] Add visualiastion of the density field.
 - [ ] Add full support for CSiBORG2 suite of simulations.
 - [ ] Add SPH field calculation from cosmotools.