diff --git a/TODO b/TODO
index 3f9a762..cab98fe 100644
--- a/TODO
+++ b/TODO
@@ -98,3 +98,14 @@ Description: After testing a couple of string search algorithms, I've ditched
              algorithm
 
 ---
+
+ID: 5
+Type: feature
+Title: implement chunked rolling hash algorithm
+Status: open
+Priority: high
+Created: 2025-05-05
+Description: Implement my custom algorithm for doing rolling hash string search
+             against a fixed length ring buffer
+
+---