diff --git a/CHANGELOG.md b/CHANGELOG.md
index e6dfc29..f7f158b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,12 @@ list yields a list of all related PRs for each release.
 
 # [unreleased]
 
+# [v2.12.4] 2023-02-12
+
+## Fixed
+
+- `tmtccmd` bumped to v4.0.0rc2, package discovery was broken.
+
 ## Added
 
 - Syrlinks temperatur set readout
diff --git a/eive_tmtc/__init__.py b/eive_tmtc/__init__.py
index ed9babf..1de914e 100644
--- a/eive_tmtc/__init__.py
+++ b/eive_tmtc/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "2.12.3"
+__version__ = "2.12.4"
 
 import logging
 from pathlib import Path
@@ -6,7 +6,7 @@ from pathlib import Path
 SW_NAME = "eive-tmtc"
 VERSION_MAJOR = 2
 VERSION_MINOR = 12
-VERSION_REVISION = 3
+VERSION_REVISION = 4
 
 EIVE_TMTC_ROOT = Path(__file__).parent
 PACKAGE_ROOT = EIVE_TMTC_ROOT.parent
diff --git a/setup.cfg b/setup.cfg
index 058dc54..76d02d8 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -27,7 +27,7 @@ classifiers =
 
 [options]
 install_requires =
-	tmtccmd @ git+https://github.com/robamu-org/tmtccmd@v4.0.0rc1
+	tmtccmd @ git+https://github.com/robamu-org/tmtccmd@v4.0.0rc2
 	# tmtccmd @ git+https://github.com/robamu-org/tmtccmd@<gitRev>#egg=tmtccmd
 packages = find:
 python_requires = >=3.10