diff --git a/CHANGELOG.md b/CHANGELOG.md
index e0926cc4..f763c678 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -24,6 +24,8 @@ will consitute of a breaking change warranting a new major release:
   A filesystem change via `prefSD` on bootup, can lead to the TLE not being read, even
   though it is there.
 - Added action cmd to read the currently stored TLE.
+- Both the `AcsController` and the `PwrController` now use the monotonic clock to calculate
+  the time difference.
 
 # [v7.4.0] 2023-11-30