diff --git a/etc/emqx.conf b/etc/emqx.conf
index 4c8195b1a..1e5136228 100644
--- a/etc/emqx.conf
+++ b/etc/emqx.conf
@@ -605,7 +605,7 @@ zone.external.acl_deny_action = ignore
 ## messages | bytes passed through.
 ##
 ## Numbers delimited by `|'. Zero or negative is to disable.
-zone.external.force_gc_policy = 10000|10MB
+zone.external.force_gc_policy = 16000|16MB
 
 ## Max message queue length and total heap size to force shutdown
 ## connection/session process.
@@ -617,7 +617,7 @@ zone.external.force_gc_policy = 10000|10MB
 ## Default:
 ##   - 10000|32MB on ARCH_64 system
 ##   - 10000|16MB on ARCH_32 sytem
-## zone.external.force_shutdown_policy = 10000|32MB
+## zone.external.force_shutdown_policy = 32000|32MB
 
 ## Maximum MQTT packet size allowed.
 ##
@@ -793,7 +793,7 @@ zone.internal.enable_acl = off
 zone.internal.acl_deny_action = ignore
 
 ## See zone.$name.force_gc_policy
-## zone.internal.force_gc_policy = 100000|100MB
+## zone.internal.force_gc_policy = 128000|128MB
 
 ## See zone.$name.wildcard_subscription.
 ##
@@ -840,7 +840,7 @@ 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|64MB
+## zone.internal.force_shutdown_policy = 128000|128MB
 
 ## All the topics will be prefixed with the mountpoint path if this option is enabled.
 ##