diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index ff587c6e..4e317331 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-    ".": "2.12.0"
+    ".": "2.12.1"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index d1420cc6..0b483d96 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [2.12.1](https://github.com/mdn/data/compare/v2.12.0...v2.12.1) (2024-10-29)
+
+
+### Bug Fixes
+
+* **css:** aspect-ratio value supports both 'auto' and 'ratio' together ([4fa8523](https://github.com/mdn/data/commit/4fa8523b48fe7b3f87fa7f6cd35f4bd3258f5d39))
+
 ## [2.12.0](https://github.com/mdn/data/compare/v2.11.1...v2.12.0) (2024-10-23)
 
 
diff --git a/package-lock.json b/package-lock.json
index 6fccc806..a5e387ff 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "mdn-data",
-  "version": "2.12.0",
+  "version": "2.12.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "mdn-data",
-      "version": "2.12.0",
+      "version": "2.12.1",
       "license": "CC0-1.0",
       "devDependencies": {
         "ajv": "^6.12.6",
diff --git a/package.json b/package.json
index 8348582c..54381cba 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "mdn-data",
-  "version": "2.12.0",
+  "version": "2.12.1",
   "description": "Open Web data by the Mozilla Developer Network",
   "main": "index.js",
   "files": [