diff --git a/CHANGELOG b/CHANGELOG
index da23687..c14ab99 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -430,3 +430,7 @@
 * Add a configuration option which allows enabling opentracing by user id. (#9978)
 * Enable experimental support for MSC2946 (spaces summary API) and MSC3083 (restricted join rules) by default. (#10011)
 
+[1.25.1]
+* Update Synapse to 1.35.1
+* Fix a bug introduced in v1.35.0 where invite-only rooms would be shown to all users in a space, regardless of if the user had access to it. (#10109)
+
diff --git a/CloudronManifest.json b/CloudronManifest.json
index fcdcced..fcd0be8 100644
--- a/CloudronManifest.json
+++ b/CloudronManifest.json
@@ -5,7 +5,7 @@
   "description": "file://DESCRIPTION.md",
   "changelog": "file://CHANGELOG",
   "tagline": "Secure & decentralized communication",
-  "version": "1.25.0",
+  "version": "1.25.1",
   "healthCheckPath": "/",
   "httpPort": 8008,
   "memoryLimit": 536870912,
diff --git a/DESCRIPTION.md b/DESCRIPTION.md
index 9a4918b..f732f00 100644
--- a/DESCRIPTION.md
+++ b/DESCRIPTION.md
@@ -1,4 +1,4 @@
-This app packages Synapse <upstream>1.35.0</upstream>.
+This app packages Synapse <upstream>1.35.1</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 750c568..94bd319 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=v1.35.0
+ARG VERSION=v1.35.1
 
 # Synapse (https://github.com/matrix-org/synapse/blob/master/INSTALL.md)
 # lxml - required for previews