diff --git a/CHANGELOG.md b/CHANGELOG.md
index 20ad03f1..f5dcd6ef 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,10 @@ will consitute of a breaking change warranting a new major release:
 
 # [unreleased]
 
+## Fixed
+
+- Bumped FSFW: `Countdown` and `Stopwatch` use new monotonic clock API now.
+
 # [v1.34.0] 2023-03-03
 
 eive-tmtc: v2.16.3