diff --git a/podman-matrix/vars.sh b/podman-matrix/vars.sh
index 63302e9..9f3a682 100644
--- a/podman-matrix/vars.sh
+++ b/podman-matrix/vars.sh
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 ## vars
 synapse_image="git.garbaye.fr/garbaye/matrixdotorg-synapse"
-synapse_version='v1.90.0'
+synapse_version='v1.91.0'
 postgres_image="docker.io/library/postgres"
 postgres_version='11-bookworm'
 ## default vars : override with ENV var