diff --git a/roles/matrix-nginx-proxy/defaults/main.yml b/roles/matrix-nginx-proxy/defaults/main.yml
index 47897489..b4b181ff 100644
--- a/roles/matrix-nginx-proxy/defaults/main.yml
+++ b/roles/matrix-nginx-proxy/defaults/main.yml
@@ -3,7 +3,7 @@ matrix_nginx_proxy_enabled: true
 # We use an official nginx image, which we fix-up to run unprivileged.
 # An alternative would be an `nginxinc/nginx-unprivileged` image, but
 # that is frequently out of date.
-matrix_nginx_proxy_docker_image: "nginx:1.15.12-alpine"
+matrix_nginx_proxy_docker_image: "nginx:1.17.0-alpine"
 matrix_nginx_proxy_docker_image_force_pull: "{{ matrix_nginx_proxy_docker_image.endswith(':latest') }}"
 
 matrix_nginx_proxy_base_path: "{{ matrix_base_data_path }}/nginx-proxy"
diff --git a/roles/matrix-postgres/defaults/main.yml b/roles/matrix-postgres/defaults/main.yml
index 3971eb92..9a2ca703 100644
--- a/roles/matrix-postgres/defaults/main.yml
+++ b/roles/matrix-postgres/defaults/main.yml
@@ -8,9 +8,9 @@ matrix_postgres_db_name: ""
 matrix_postgres_base_path: "{{ matrix_base_data_path }}/postgres"
 matrix_postgres_data_path: "{{ matrix_postgres_base_path }}/data"
 
-matrix_postgres_docker_image_v9: "postgres:9.6.13-alpine"
-matrix_postgres_docker_image_v10: "postgres:10.8-alpine"
-matrix_postgres_docker_image_v11: "postgres:11.3-alpine"
+matrix_postgres_docker_image_v9: "postgres:9.6.14-alpine"
+matrix_postgres_docker_image_v10: "postgres:10.9-alpine"
+matrix_postgres_docker_image_v11: "postgres:11.4-alpine"
 matrix_postgres_docker_image_latest: "{{ matrix_postgres_docker_image_v11 }}"
 
 # This variable is assigned at runtime. Overriding its value has no effect.