diff --git a/CHANGES.md b/CHANGES.md
index 23debccd63..c0c03af72e 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,12 @@
+# Synapse 1.133.0 (2025-07-01)
+
+### Bugfixes
+
+- Bump `cibuildwheel` to 3.0.0 to fix the `manylinux` wheel builds. ([\#18615](https://github.com/element-hq/synapse/issues/18615))
+
+
+
+
 # Synapse 1.133.0rc1 (2025-06-24)
 
 ### Features
diff --git a/changelog.d/18615.bugfix b/changelog.d/18615.bugfix
deleted file mode 100644
index dbdf1849ca..0000000000
--- a/changelog.d/18615.bugfix
+++ /dev/null
@@ -1 +0,0 @@
-Bump `cibuildwheel` to 3.0.0 to fix the `manylinux` wheel builds.
diff --git a/debian/changelog b/debian/changelog
index 614901e3fd..32070a32d0 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+matrix-synapse-py3 (1.133.0) stable; urgency=medium
+
+  * New synapse release 1.133.0.
+
+ -- Synapse Packaging team <packages@matrix.org>  Tue, 01 Jul 2025 13:13:24 +0000
+
 matrix-synapse-py3 (1.133.0~rc1) stable; urgency=medium
 
   * New Synapse release 1.133.0rc1.
diff --git a/pyproject.toml b/pyproject.toml
index a354e26d39..8593ce06f0 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -101,7 +101,7 @@ module-name = "synapse.synapse_rust"
 
 [tool.poetry]
 name = "matrix-synapse"
-version = "1.133.0rc1"
+version = "1.133.0"
 description = "Homeserver for the Matrix decentralised comms protocol"
 authors = ["Matrix.org Team and Contributors <packages@matrix.org>"]
 license = "AGPL-3.0-or-later"