diff --git a/ansible/roles/web/templates/docker-compose.j2 b/ansible/roles/web/templates/docker-compose.j2
index bb123ea..20600bf 100644
--- a/ansible/roles/web/templates/docker-compose.j2
+++ b/ansible/roles/web/templates/docker-compose.j2
@@ -39,4 +39,5 @@ elasticsearch:
   ports:
     - "9200:9200"
   environment:
-    - ES_JAVA_OPTS="-Xms512m -Xmx512m"
+    - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
+  mem_limit: 1g