diff --git a/salt/docker/defaults.yaml b/salt/docker/defaults.yaml
index f5a523b8c..140757524 100644
--- a/salt/docker/defaults.yaml
+++ b/salt/docker/defaults.yaml
@@ -1,6 +1,9 @@
 docker:
   range: '172.17.1.0/24'
   gateway: '172.17.1.1'
+  ulimits:
+    soft: 1048576
+    hard: 1048576
   containers:
     'so-dockerregistry':
       final_octet: 20