diff --git a/fsfw b/fsfw
index 009700c..cbe1b65 160000
--- a/fsfw
+++ b/fsfw
@@ -1 +1 @@
-Subproject commit 009700ce801641921fd713c7fe668e27d8a7c653
+Subproject commit cbe1b65a338b8f1d26859afbbcca70c4c11368d6
diff --git a/tmtc/deps/tmtccmd b/tmtc/deps/tmtccmd
index f3c9501..b171f77 160000
--- a/tmtc/deps/tmtccmd
+++ b/tmtc/deps/tmtccmd
@@ -1 +1 @@
-Subproject commit f3c9501891b582f5b4c61aec5eb939d05a2e24d2
+Subproject commit b171f77539db17ab6ade92d9609d296563968ac8
diff --git a/tmtc/requirements.txt b/tmtc/requirements.txt
index 7b30a11..d274e86 100644
--- a/tmtc/requirements.txt
+++ b/tmtc/requirements.txt
@@ -1 +1 @@
-tmtccmd >= 3.0.0rc1
+tmtccmd == 4.0.0a1