diff --git a/roles/matrix-synapse/defaults/main.yml b/roles/matrix-synapse/defaults/main.yml
index 0e627b948..64278dd73 100644
--- a/roles/matrix-synapse/defaults/main.yml
+++ b/roles/matrix-synapse/defaults/main.yml
@@ -3,7 +3,7 @@
 
 matrix_synapse_enabled: true
 
-matrix_synapse_docker_image: "matrixdotorg/synapse:v1.5.0"
+matrix_synapse_docker_image: "matrixdotorg/synapse:v1.5.1"
 matrix_synapse_docker_image_force_pull: "{{ matrix_synapse_docker_image.endswith(':latest') }}"
 
 matrix_synapse_base_path: "{{ matrix_base_data_path }}/synapse"