diff --git a/roles/matrix-synapse/defaults/main.yml b/roles/matrix-synapse/defaults/main.yml
index 38cd2321..e2ab5fb8 100644
--- a/roles/matrix-synapse/defaults/main.yml
+++ b/roles/matrix-synapse/defaults/main.yml
@@ -5,7 +5,7 @@ matrix_synapse_enabled: true
 
 matrix_synapse_container_image_self_build: false
 
-matrix_synapse_docker_image: "matrixdotorg/synapse:v1.12.0"
+matrix_synapse_docker_image: "matrixdotorg/synapse:v1.12.3"
 matrix_synapse_docker_image_force_pull: "{{ matrix_synapse_docker_image.endswith(':latest') }}"
 
 matrix_synapse_base_path: "{{ matrix_base_data_path }}/synapse"