diff --git a/CHANGELOG.md b/CHANGELOG.md
index d81b4dc..3c8f52a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1208,3 +1208,13 @@
 * Fix case in which m.fully_read marker would not get updated. Contributed by @SpiritCroc. (#16990)
 * Fix bug which did not retract a user's pending knocks at rooms when their account was deactivated. Contributed by @hanadi92. (#17010)
 
+[1.91.1]
+* Update Synapse to 1.105.0
+* [Full changelog](https://github.com/element-hq/synapse/releases/tag/v1.105.0)
+* Stabilize support for MSC4010 which clarifies the interaction of push rules and account data. Contributed by @clokep. (#17022)
+* Stabilize support for MSC3981: /relations recursion. Contributed by @clokep. (#17023)
+* Add support for moving /pushrules off of main process. (#17037, #17038)
+* Fix various long-standing bugs which could cause incorrect state to be returned from /sync in certain situations. (#16930, #16932, #16942, #17064, #17065, #17066)
+* Fix server notice rooms not always being created as unencrypted rooms, even when encryption_enabled_by_default_for_room_type is in use (server notices are always unencrypted). (#17033)
+* Fix the .m.rule.encrypted_room_one_to_one and .m.rule.room_one_to_one default underride push rules being in the wrong order. Contributed by @Sumpy1. (#17043)
+
diff --git a/CloudronManifest.json b/CloudronManifest.json
index b23382e..4e20b57 100644
--- a/CloudronManifest.json
+++ b/CloudronManifest.json
@@ -5,8 +5,8 @@
   "description": "file://DESCRIPTION.md",
   "changelog": "file://CHANGELOG.md",
   "tagline": "Secure & decentralized communication",
-  "version": "1.91.0",
-  "upstreamVersion": "1.104.0",
+  "version": "1.91.1",
+  "upstreamVersion": "1.105.0",
   "healthCheckPath": "/",
   "httpPort": 8008,
   "memoryLimit": 536870912,