diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9308d71d..c061f0d0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -36,6 +36,12 @@ will consitute of a breaking change warranting a new major release:
   is not in normal mode.
 - MPSoC debug mode.
 
+## Changed
+
+- Swapped RTD 9 and RTD 11 chip select definitions. It is strongly suspected the cables
+  for those devices were swapped during integration. This is probably the easiest way to
+  fix the issue.
+
 # [v7.1.0] 2023-10-11
 
 - Bumped `eive-tmtc` to v5.8.0.