diff --git a/CHANGELOG b/CHANGELOG
index 628b271..14b84de 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -385,3 +385,8 @@
 * Fix longstanding bug which caused duplicate key value violates unique constraint "remote_media_cache_thumbnails_media_origin_media_id_thumbna_key" errors. (#9725)
 * Fix bug where sharded federation senders could get stuck repeatedly querying the DB in a loop, using lots of CPU. (#9770)
 * Fix duplicate logging of exceptions thrown during federation transaction processing. (#9780)
+
+[1.22.3]
+* Update Synapse to 1.32.1
+* Fix a regression in Synapse 1.32.0 which caused Synapse to report large numbers of Prometheus time series, potentially overwhelming Prometheus instances. (#9854)
+
diff --git a/CloudronManifest.json b/CloudronManifest.json
index 210a921..f3991bb 100644
--- a/CloudronManifest.json
+++ b/CloudronManifest.json
@@ -5,7 +5,7 @@
   "description": "file://DESCRIPTION.md",
   "changelog": "file://CHANGELOG",
   "tagline": "Secure & decentralized communication",
-  "version": "1.22.2",
+  "version": "1.22.3",
   "healthCheckPath": "/",
   "httpPort": 8008,
   "memoryLimit": 536870912,
diff --git a/DESCRIPTION.md b/DESCRIPTION.md
index f68449d..4b9362d 100644
--- a/DESCRIPTION.md
+++ b/DESCRIPTION.md
@@ -1,4 +1,4 @@
-This app packages Synapse <upstream>1.32.0</upstream>.
+This app packages Synapse <upstream>1.32.1</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
diff --git a/Dockerfile b/Dockerfile
index 2692fe2..aad7623 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -9,7 +9,7 @@ RUN virtualenv -p python3 /app/code/env
 ENV VIRTUAL_ENV=/app/code/env
 ENV PATH="$VIRTUAL_ENV/bin:$PATH"
 
-ARG VERSION=v1.32.0
+ARG VERSION=v1.32.1
 
 # Synapse (https://github.com/matrix-org/synapse/blob/master/INSTALL.md)
 # lxml - required for previews