diff --git a/README.md b/README.md
index de8768d..327ab83 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ cargo run --example <filename>
 ```
 
 ## Todo
-- Introduce parallelism.
+- Add more block sizes.
 
 ## License
 Copyright © 2024 K Shiva Kiran <*shiva_kr at riseup dot net*>.