diff --git a/IV/README.md b/IV/README.md
index 476fca8..bb70e3b 100644
--- a/IV/README.md
+++ b/IV/README.md
@@ -70,8 +70,8 @@ accept broader contributions, TODO:
 - [x] Elimination operator.
 - [x] Exaggeration operator.
 - [ ] Combination operator.
-- [ ] CI.
-- [ ] Known bug in `wm_self_crossing`: the program crashes with a river in
+- [ ] CI (unlikely to happen).
+- [x] Known bug in `wm_self_crossing`: the program crashes with a river in
   Lithuania.
 
 License