diff --git a/CHANGELOG.md b/CHANGELOG.md
index c6aab12..4f216e8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+## v0.9.12 (2025-11-28)
+
+### Refactor
+
+- **data**: clean up stale catalogue links and regex entries
+
 ## v0.9.11 (2025-11-28)
 
 ### Fix
diff --git a/README.md b/README.md
index 3f14f70..9cec7aa 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # Collection acronyms for identification - cafi
 
-[![release: 0.9.11](https://img.shields.io/badge/rel-0.9.11-blue.svg?style=flat-square)](https://github.com/LeibnizDSMZ/cafi)
+[![release: 0.9.12](https://img.shields.io/badge/rel-0.9.12-blue.svg?style=flat-square)](https://github.com/LeibnizDSMZ/cafi)
 [![MIT LICENSE](https://img.shields.io/badge/License-MIT-brightgreen.svg?style=flat-square)](https://choosealicense.com/licenses/mit/)
 [![DATA LICENSE - CC BY 4.0](https://img.shields.io/badge/Data%20License-CC%20BY%204.0-brightgreen.svg?style=flat-square)](http://creativecommons.org/licenses/by/4.0/)
 [![Documentation Status](https://img.shields.io/badge/docs-GitHub-blue.svg?style=flat-square)](https://LeibnizDSMZ.github.io/cafi/)
diff --git a/pyproject.toml b/pyproject.toml
index 0f61449..9eb5112 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "cafi"
-version = "0.9.11"
+version = "0.9.12"
 description = "This project acts as a registry for acronyms used by culture collections."
 readme = "README.md"
 authors = [{ name = "Artur Lissin", email = "artur.lissin@dsmz.de" }]
diff --git a/src/cafi/constants/versions.py b/src/cafi/constants/versions.py
index f32cc76..c539abb 100644
--- a/src/cafi/constants/versions.py
+++ b/src/cafi/constants/versions.py
@@ -1,4 +1,4 @@
 from typing import Final
 
-CURRENT_VER: Final[str] = "v0.9.11"
+CURRENT_VER: Final[str] = "v0.9.12"
 STABLE_VER: Final[str] = "main"
diff --git a/src/cafi/data/acr_db.json b/src/cafi/data/acr_db.json
index 0aa6e7e..c4a453c 100644
--- a/src/cafi/data/acr_db.json
+++ b/src/cafi/data/acr_db.json
@@ -2212,9 +2212,6 @@
       "YU:CGSC"
     ],
     "active": true,
-    "catalogue": [
-      "https://ecgrc.net/CGSC/Strain.php?ID={id}"
-    ],
     "code": "CGSC",
     "country": "US",
     "gbif": "0d56526b-f406-473d-bf65-7532d4d06d1d",
diff --git a/src/cafi/data/catalogue_db.json b/src/cafi/data/catalogue_db.json
index ababaa5..3048b4e 100644
--- a/src/cafi/data/catalogue_db.json
+++ b/src/cafi/data/catalogue_db.json
@@ -212,8 +212,5 @@
   ],
   "96": [
     "CAIM 1519"
-  ],
-  "97": [
-    "CGSC 12563"
   ]
 }
diff --git a/uv.lock b/uv.lock
index 78da522..5423898 100644
--- a/uv.lock
+++ b/uv.lock
@@ -75,7 +75,7 @@ wheels = [
 
 [[package]]
 name = "cafi"
-version = "0.9.11"
+version = "0.9.12"
 source = { editable = "." }
 dependencies = [
     { name = "pydantic" },