diff --git a/docker-compose.yml b/docker-compose.yml
index 31aad7e45a9..a3c9dd12093 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -22,6 +22,7 @@ services:
 
   postgres:
     image: postgres:15.3
+    shm_size: 1G
     environment:
       - POSTGRES_PASSWORD=kitsune
       - POSTGRES_USER=kitsune