diff --git a/CHANGES.md b/CHANGES.md
index f0885a2f1..100ce9927 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -1,3 +1,24 @@
+Synapse 1.85.0 (2023-06-06)
+===========================
+
+No significant changes since 1.85.0rc2.
+
+
+## Security advisory
+
+The following issues are fixed in 1.85.0.
+
+- [GHSA-26c5-ppr8-f33p](https://github.com/matrix-org/synapse/security/advisories/GHSA-26c5-ppr8-f33p) / [CVE-2023-32682](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-32683) — Low Severity
+
+  It may be possible for a deactivated user to login when using uncommon configurations.
+
+- [GHSA-98px-6486-j7qc](https://github.com/matrix-org/synapse/security/advisories/GHSA-98px-6486-j7qc) / [CVE-2023-32683](https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-32683) — Low Severity
+
+  A discovered oEmbed or image URL can bypass the `url_preview_url_blacklist` setting potentially allowing server side request forgery or bypassing network policies. Impact is limited to IP addresses allowed by the `url_preview_ip_range_blacklist` setting (by default this only allows public IPs).
+
+See the advisories for more details. If you have any questions, email security@matrix.org.
+
+
 Synapse 1.85.0rc2 (2023-06-01)
 ==============================
 
diff --git a/debian/changelog b/debian/changelog
index ae348ce4d..2278a8328 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+matrix-synapse-py3 (1.85.0) stable; urgency=medium
+
+  * New Synapse release 1.85.0.
+
+ -- Synapse Packaging team <packages@matrix.org>  Tue, 06 Jun 2023 09:39:29 +0100
+
 matrix-synapse-py3 (1.85.0~rc2) stable; urgency=medium
 
   * New Synapse release 1.85.0rc2.
diff --git a/pyproject.toml b/pyproject.toml
index 4ed4214f3..745b58d7b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -89,7 +89,7 @@ manifest-path = "rust/Cargo.toml"
 
 [tool.poetry]
 name = "matrix-synapse"
-version = "1.85.0rc2"
+version = "1.85.0"
 description = "Homeserver for the Matrix decentralised comms protocol"
 authors = ["Matrix.org Team and Contributors <packages@matrix.org>"]
 license = "Apache-2.0"