diff --git a/CHANGES.md b/CHANGES.md
index b30ea24b0d..5f72855bc0 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,12 @@
+# Synapse 1.142.1 (2025-11-18)
+
+## Bugfixes
+
+- Fixed a bug introduced in v1.142.0 preventing subpaths in MAS endpoints from working. ([\#19186](https://github.com/element-hq/synapse/issues/19186))
+
+
+
+
 # Synapse 1.142.0 (2025-11-11)
 
 ## Dropped support for Python 3.9
diff --git a/changelog.d/19186.bugfix b/changelog.d/19186.bugfix
deleted file mode 100644
index e5ef1bf6d8..0000000000
--- a/changelog.d/19186.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Fix regression preventing subpaths in MAS endpoints.
diff --git a/debian/changelog b/debian/changelog
index 1c3b9dff46..e0b6cfecea 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+matrix-synapse-py3 (1.142.1) stable; urgency=medium
+
+  * New Synapse release 1.142.1.
+
+ -- Synapse Packaging team <packages@matrix.org>  Tue, 18 Nov 2025 12:25:23 -0700
+
 matrix-synapse-py3 (1.142.0) stable; urgency=medium
 
   * New Synapse release 1.142.0.
diff --git a/pyproject.toml b/pyproject.toml
index 97bf21d8b9..bbf26ef0cb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -107,7 +107,7 @@ module-name = "synapse.synapse_rust"
 
 [tool.poetry]
 name = "matrix-synapse"
-version = "1.142.0"
+version = "1.142.1"
 description = "Homeserver for the Matrix decentralised comms protocol"
 authors = ["Matrix.org Team and Contributors <packages@matrix.org>"]
 license = "AGPL-3.0-or-later OR LicenseRef-Element-Commercial"