diff --git a/slic-stack.yml b/slic-stack.yml
index a39810a..edeb249 100644
--- a/slic-stack.yml
+++ b/slic-stack.yml
@@ -131,6 +131,7 @@ services:
       interval: 1s
       timeout: 3s
       retries: 30
+    shm_size: "${SLIC_CHROME_CONTAINER_SHM_SIZE:-256m}"
 
   slic:
     image: ghcr.io/stellarwp/slic-php${SLIC_PHP_VERSION}:${SLIC_VERSION}