diff --git a/stdeb.cfg b/stdeb.cfg
index 3c5672b7..9eb1227d 100644
--- a/stdeb.cfg
+++ b/stdeb.cfg
@@ -3,5 +3,6 @@ No-Python2:
 Depends3: python3-distlib, python3-empy (<4), python3-packaging, python3-pytest, python3-setuptools, python3 (>= 3.8) | python3-importlib-metadata
 Recommends3: python3-pytest-cov
 Suggests3: python3-pytest-repeat, python3-pytest-rerunfailures
+Replaces3: colcon
 Suite: focal jammy noble bookworm trixie
 X-Python3-Version: >= 3.6