diff --git a/diary.md b/diary.md
index e4bcf27..6c417ca 100644
--- a/diary.md
+++ b/diary.md
@@ -1,5 +1,6 @@
 ## Mon 17 Mar 2025
 - Add services heatmap.
+- Add `return_all_coordinates` lambda function.
 
 ## Sat 15 Mar 2025
 - Add CD pipeline.