diff --git a/CHANGES.md b/CHANGES.md
index eb537f9f6..c1ea40de2 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,23 @@
+# Synapse 1.93.0 (2023-09-26)
+
+No significant changes since 1.93.0rc1.
+
+
+## Security advisory
+
+The following issues are fixed in 1.93.0 (and RCs).
+
+- [GHSA-4f74-84v3-j9q5](https://github.com/matrix-org/synapse/security/advisories/GHSA-4f74-84v3-j9q5) / [CVE-2023-41335](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-41335) — Low Severity
+
+  Temporary storage of plaintext passwords during password changes.
+
+- [GHSA-7565-cq32-vx2x](https://github.com/matrix-org/synapse/security/advisories/GHSA-7565-cq32-vx2x) / [CVE-2023-42453](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-42453) — Low Severity
+
+  Improper validation of receipts allows forged read receipts.
+
+See the advisories for more details. If you have any questions, email security@matrix.org.
+
+
 # Synapse 1.93.0rc1 (2023-09-19)
 
 ### Features
diff --git a/debian/changelog b/debian/changelog
index 192eedd45..7be71019b 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+matrix-synapse-py3 (1.93.0) stable; urgency=medium
+
+  * New Synapse release 1.93.0.
+
+ -- Synapse Packaging team <packages@matrix.org>  Tue, 26 Sep 2023 15:54:40 +0100
+
 matrix-synapse-py3 (1.93.0~rc1) stable; urgency=medium
 
   * New synapse release 1.93.0rc1.
diff --git a/pyproject.toml b/pyproject.toml
index f69336a73..5a1b0ec43 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -95,7 +95,7 @@ manifest-path = "rust/Cargo.toml"
 
 [tool.poetry]
 name = "matrix-synapse"
-version = "1.93.0rc1"
+version = "1.93.0"
 description = "Homeserver for the Matrix decentralised comms protocol"
 authors = ["Matrix.org Team and Contributors <packages@matrix.org>"]
 license = "Apache-2.0"