diff --git a/CHANGELOG b/CHANGELOG
index 0da95f4..11f7ee5 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -496,4 +496,10 @@
 * Speed up responding with large JSON objects to requests. (#10868, #10905)
 * Add a user_may_create_room_with_invites spam checker callback to allow modules to allow or deny a room creation request based on the invites and/or 3PID invites it includes. (#10898)
 
+[1.34.0]
+* Update Synapse to 1.45.0
+* [Full changelog](https://github.com/matrix-org/synapse/releases/tag/v1.45.0)
+* Fix a long-standing bug when using multiple event persister workers where events were not correctly sent down /sync due to a race. (#11045)
+* Fix a bug introduced in Synapse 1.45.0rc1 where the user directory would stop updating if it processed an event from a user not in the users table. (#11053)
+* Fix a bug introduced in Synapse 1.44.0 when logging errors during oEmbed processing. (#11061)
 
diff --git a/CloudronManifest.json b/CloudronManifest.json
index cfb24d9..4b3c516 100644
--- a/CloudronManifest.json
+++ b/CloudronManifest.json
@@ -5,7 +5,7 @@
   "description": "file://DESCRIPTION.md",
   "changelog": "file://CHANGELOG",
   "tagline": "Secure & decentralized communication",
-  "version": "1.33.0",
+  "version": "1.34.0",
   "healthCheckPath": "/",
   "httpPort": 8008,
   "memoryLimit": 536870912,
diff --git a/DESCRIPTION.md b/DESCRIPTION.md
index e8e1fde..efb7623 100644
--- a/DESCRIPTION.md
+++ b/DESCRIPTION.md
@@ -1,4 +1,4 @@
-This app packages Synapse <upstream>1.44.0</upstream>.
+This app packages Synapse <upstream>1.45.0</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
diff --git a/Dockerfile b/Dockerfile
index 34b446b..72c7a3b 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=v1.44.0
+ARG VERSION=v1.45.0
 
 # Synapse (https://github.com/matrix-org/synapse/blob/master/INSTALL.md)
 # lxml - required for previews