diff --git a/etc/emqx.conf b/etc/emqx.conf
index e8f08b827..0162fae7c 100644
--- a/etc/emqx.conf
+++ b/etc/emqx.conf
@@ -825,7 +825,7 @@ zone.internal.enable_flapping_detect = off
 ## Default:
 ##   - 10000|32MB on ARCH_64 system
 ##   - 10000|16MB on ARCH_32 sytem
-zone.internal.force_shutdown_policy = 100000|256MB
+zone.internal.force_shutdown_policy = 100000|64MB
 
 ## All the topics will be prefixed with the mountpoint path if this option is enabled.
 ##