diff --git a/CHANGES.md b/CHANGES.md
index 7e9ec7d4d6..cb7142e965 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -2,6 +2,7 @@ merlin NEXT_VERSION
 ===================
 
   + merlin binary
+    - Rename `-cache-period` flag to `-cache-lifespan`. (#1705)
     - Fix a follow-up issue to the preference of non-ghost nodes introduced in #1660 (#1690, fixes #1689)
     - Add `--cache-period` flag, that sets cache invalidation period. (#1698)
     - Fix Merlin locate not fallbacking on the correct file in case of ambiguity