diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8cc285f6..b5bf0e7c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -34,6 +34,7 @@ will consitute of a breaking change warranting a new major release:
 - EIVE system fallback and COM system fallback: Perform general subsystem handling first, then
   event reception, and finally any new transition handling.
 - IMTQ MGM integration time lowered to 6 ms. This relaxes scheduling requirements a bit.
+- PCDU handler switcher HK set now has additional 3V3 switcher state HK.
 
 # [v1.42.0] 2023-04-01
 
diff --git a/tmtc b/tmtc
index 8a69507d..fb7b2734 160000
--- a/tmtc
+++ b/tmtc
@@ -1 +1 @@
-Subproject commit 8a69507d05429a7934188b208c8cbf0b46c69398
+Subproject commit fb7b273485f378994eb5775d86b314301d0c97d5