diff --git a/README.md b/README.md
index b535f8fc72d20bc19dd7187a855de7dfe12d263f..8ee631970a9df371db758a7b30f93093331bcf66 100644
--- a/README.md
+++ b/README.md
@@ -16,8 +16,10 @@ The suggestion is to run it with one mpi task per socket.
 # Todo
 
  - [x] ~~arugment parser~~
+ - [x] ~~H2: graph reduction~~
  - [ ] prettify overall stdout
  - [ ] H1: implementation of lock free centers elimination
  - [ ] kdtree: implement slim heap
  - [ ] kdtree: optimization an profiling
+ - [ ] io: curation of IO using mpi IO or other solutions