diff --git a/CHANGELOG b/CHANGELOG
index 5d66a10..b0cdc35 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -343,3 +343,6 @@
 * Finalise support for allowing clients to pick an SSO Identity Provider (MSC2858). (#9617)
 * Tell spam checker modules about the SSO IdP a user registered through if one was used. (#9626)
 
+[1.21.1]
+* Update Synapse to 1.30.1
+
diff --git a/CloudronManifest.json b/CloudronManifest.json
index fb1a3b2..cd99ff9 100644
--- a/CloudronManifest.json
+++ b/CloudronManifest.json
@@ -5,7 +5,7 @@
   "description": "file://DESCRIPTION.md",
   "changelog": "file://CHANGELOG",
   "tagline": "Secure & decentralized communication",
-  "version": "1.21.0",
+  "version": "1.21.1",
   "healthCheckPath": "/",
   "httpPort": 8008,
   "memoryLimit": 536870912,
diff --git a/DESCRIPTION.md b/DESCRIPTION.md
index f1d1505..2829814 100644
--- a/DESCRIPTION.md
+++ b/DESCRIPTION.md
@@ -1,4 +1,4 @@
-This app packages Synapse <upstream>1.30.0</upstream>.
+This app packages Synapse <upstream>1.30.1</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 d109e4a..f141bd2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,7 +4,7 @@ RUN mkdir -p /app/pkg
 
 WORKDIR /app/code
 
-ARG VERSION=v1.30.0
+ARG VERSION=v1.30.1
 
 # https://pythonspeed.com/articles/activate-virtualenv-dockerfile/
 RUN virtualenv -p python3 /app/code/env