diff --git a/README.md b/README.md
index 3b1aa28e8..78ffb6476 100644
--- a/README.md
+++ b/README.md
@@ -125,6 +125,7 @@ The following paragraph provides this information.
 
 # TODO
 
+- remove old API
 - more documentation on tst_test features
 - more documentation on cross-compiling
 - CI configuration