diff --git a/CHANGELOG b/CHANGELOG
index 18abf59..331fe1e 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -305,3 +305,11 @@
 * Add an admin API for protecting local media from quarantine. (#9086)
 * Remove a user's avatar URL and display name when deactivated with the Admin API. (#8932)
 
+[1.18.0]
+* Update Synapse to 1.27.0
+* Use base image v3
+* Update python to 3.8
+* [Full changelog](https://github.com/matrix-org/synapse/releases/tag/v1.27.0)
+* Add an admin API for getting and deleting forward extremities for a room. (#9062)
+* Add an admin API for retrieving the current room state of a room. (#9168)
+* Add an admin API endpoint for shadow-banning users. (#9209)
diff --git a/CloudronManifest.json b/CloudronManifest.json
index 6c98ee2..2d9d354 100644
--- a/CloudronManifest.json
+++ b/CloudronManifest.json
@@ -5,7 +5,7 @@
   "description": "file://DESCRIPTION.md",
   "changelog": "file://CHANGELOG",
   "tagline": "Secure & decentralized communication",
-  "version": "1.17.0",
+  "version": "1.18.0",
   "healthCheckPath": "/",
   "httpPort": 8008,
   "memoryLimit": 536870912,
diff --git a/DESCRIPTION.md b/DESCRIPTION.md
index 61cc560..60cd989 100644
--- a/DESCRIPTION.md
+++ b/DESCRIPTION.md
@@ -1,4 +1,4 @@
-This app packages Synapse <upstream>1.26.0</upstream>.
+This app packages Synapse <upstream>1.27.0</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