diff --git a/CHANGELOG b/CHANGELOG
index 5311dca..4214a70 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -228,3 +228,6 @@
 * Add the room topic and avatar to the room details admin API. (#8305)
 * Add an admin API for querying rooms where a user is a member. Contributed by @dklimpel. (#8306)
 
+[1.12.1]
+* Updat Synapse to 1.21.1
+* [Full changelog](https://github.com/matrix-org/synapse/releases/tag/v1.21.1)
diff --git a/CloudronManifest.json b/CloudronManifest.json
index c7df21e..6055072 100644
--- a/CloudronManifest.json
+++ b/CloudronManifest.json
@@ -5,7 +5,7 @@
   "description": "file://DESCRIPTION.md",
   "changelog": "file://CHANGELOG",
   "tagline": "Secure & decentralized communication",
-  "version": "1.12.0",
+  "version": "1.12.1",
   "healthCheckPath": "/",
   "httpPort": 8008,
   "memoryLimit": 536870912,
diff --git a/DESCRIPTION.md b/DESCRIPTION.md
index 092c350..e9dd865 100644
--- a/DESCRIPTION.md
+++ b/DESCRIPTION.md
@@ -1,4 +1,4 @@
-This app packages Synapse <upstream>1.21.0</upstream>.
+This app packages Synapse <upstream>1.21.1</upstream>.
 
 **This package only provides the Matrix backend. A variety of clients are available
 [here](https://matrix.org/clients/). Riot is a popular web frontend for Matrix and