diff --git a/docker-compose.yml b/docker-compose.yml
index e12df47..49dbd00 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -112,6 +112,7 @@ services:
     # and the store-message-db-url is set to use Postgres
     image: postgres:15.4-alpine3.18
     restart: on-failure:5
+    shm_size: '1g'  # Set shared memory size to 1 GB
     environment:
       <<: *pg_env
     volumes: