diff --git a/compose.postgresql.yml b/compose.postgresql.yml
index 00aac55..0ae3408 100644
--- a/compose.postgresql.yml
+++ b/compose.postgresql.yml
@@ -7,6 +7,7 @@ services:
       - POSTGRES_USER=${DB_USER}
       - DEMO_DATASET=${DEMO_DATASET}
       - DB_ENGINE=django.db.backends.postgresql
+    shm_size: 1g
     healthcheck:
       test: pg_isready -U ${DB_USER} -d ${DB_NAME}
       interval: 10s