diff --git a/webserver/docker_matrix/templates/docker-compose.yml b/webserver/docker_matrix/templates/docker-compose.yml
index d8392105790d6ad5cd97b9ea2fa43e2479950877..2e17c0fd36657772e8a1b9b1d2c4f0b8f87f30df 100644
--- a/webserver/docker_matrix/templates/docker-compose.yml
+++ b/webserver/docker_matrix/templates/docker-compose.yml
@@ -24,7 +24,7 @@ services:
 
   synapse:
 
-    image: matrixdotorg/synapse:v1.83.0
+    image: matrixdotorg/synapse:v1.91.1
     restart: always
     cpu_count: "1"
     cpuset: "0"