diff --git a/CHANGELOG b/CHANGELOG
index 2512fdd..20dadfe 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -589,7 +589,6 @@
 * Add a new Jinja2 template filter to extract the local part of an email address. (#12212)
 
 [1.40.1]
-* Update Synapse to 1.55.1
-* [Full changelog](https://github.com/matrix-org/synapse/releases/tag/v1.55.1)
-* Remove uses of the long-deprecated jinja2.Markup which would prevent Synapse from starting with Jinja 3.1.0 or above installed. (#12289)
+* Update Synapse to 1.55.2
+* [Full changelog](https://github.com/matrix-org/synapse/releases/tag/v1.55.2)
 
diff --git a/CloudronManifest.json b/CloudronManifest.json
index 017f1f9..c91b493 100644
--- a/CloudronManifest.json
+++ b/CloudronManifest.json
@@ -5,8 +5,8 @@
   "description": "file://DESCRIPTION.md",
   "changelog": "file://CHANGELOG",
   "tagline": "Secure & decentralized communication",
-  "version": "1.40.1",
-  "upstreamVersion": "1.55.1",
+  "version": "1.40.1-1",
+  "upstreamVersion": "1.55.2",
   "healthCheckPath": "/",
   "httpPort": 8008,
   "memoryLimit": 536870912,