diff --git a/CHANGELOG.md b/CHANGELOG.md
index fab8aa9..e923374 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1502,3 +1502,8 @@
 * Deprecation of MacOS Python wheels
 * Properly stop building wheels for Python 3.9 and free-threaded CPython. ([#19154](https://github.com/element-hq/synapse/issues/19154))
 
+[1.123.1]
+* Update synapse to 1.142.1
+* [Full Changelog](https://github.com/element-hq/synapse/releases/tag/v1.142.1)
+* Fixed a bug introduced in v1.142.0 preventing subpaths in MAS endpoints from working. ([#19186](https://github.com/element-hq/synapse/issues/19186))
+
diff --git a/CloudronManifest.json b/CloudronManifest.json
index b8030a3..71296a3 100644
--- a/CloudronManifest.json
+++ b/CloudronManifest.json
@@ -5,7 +5,7 @@
   "description": "file://DESCRIPTION.md",
   "changelog": "file://CHANGELOG.md",
   "tagline": "Secure & decentralized communication",
-  "version": "1.123.0",
+  "version": "1.123.1",
   "upstreamVersion": "1.142.1",
   "healthCheckPath": "/",
   "httpPort": 8008,