diff --git a/CHANGES.md b/CHANGES.md
index 96a9fadbfb..95ab39d0e3 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,8 @@
+# Synapse 1.153.0 (2026-05-19)
+
+No significant changes since 1.153.0rc3.
+
+
 # Synapse 1.153.0rc3 (2026-05-15)
 
 ## Bugfixes
diff --git a/debian/changelog b/debian/changelog
index 81f080bead..b1a4e04bc3 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+matrix-synapse-py3 (1.153.0) stable; urgency=medium
+
+  * New Synapse release 1.153.0.
+
+ -- Synapse Packaging team <packages@matrix.org>  Tue, 19 May 2026 14:12:51 +0100
+
 matrix-synapse-py3 (1.153.0~rc3) stable; urgency=medium
 
   * New Synapse release 1.153.0rc3.
diff --git a/pyproject.toml b/pyproject.toml
index fed1a23f4a..66cd3e83b5 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [project]
 name = "matrix-synapse"
-version = "1.153.0rc3"
+version = "1.153.0"
 description = "Homeserver for the Matrix decentralised comms protocol"
 readme = "README.rst"
 authors = [