diff --git a/srcpkgs/synapse/template b/srcpkgs/synapse/template
index cf810199da2..e2fe3a0f284 100644
--- a/srcpkgs/synapse/template
+++ b/srcpkgs/synapse/template
@@ -1,6 +1,6 @@
 # Template file for 'synapse'
 pkgname=synapse
-version=1.12.0
+version=1.12.3
 revision=1
 archs=noarch
 build_style=python3-module
@@ -19,7 +19,7 @@ maintainer="Pete <pete@port22.co.uk>"
 license="Apache-2.0"
 homepage="https://github.com/matrix-org/synapse"
 distfiles="https://github.com/matrix-org/synapse/archive/v${version}.tar.gz"
-checksum=779ea71f19caef69015f600876a617315f8a749fe0bb143ddecc197bfe32e0d5
+checksum=c21cc8167c9f510c7fe575447a9e1948d65b1b01f55f67d1c477c5f8972c242f
 
 system_accounts="synapse"
 synapse_homedir="/var/lib/synapse"