diff --git a/build_debian.sh b/build_debian.sh
index c1a13d1ae7d..fd98922a445 100755
--- a/build_debian.sh
+++ b/build_debian.sh
@@ -388,6 +388,9 @@ set /files/etc/sysctl.conf/net.ipv4.udp_l3mdev_accept 1
 
 set /files/etc/sysctl.conf/net.core.rmem_max 2097152
 set /files/etc/sysctl.conf/net.core.wmem_max 2097152
+
+set /files/etc/sysctl.conf/net.core.somaxconn 512
+
 " -r $FILESYSTEM_ROOT
 
 if [[ $CONFIGURED_ARCH == amd64 ]]; then
diff --git a/files/build_templates/pmon.service.j2 b/files/build_templates/pmon.service.j2
index 9c422625681..60024fffc30 100644
--- a/files/build_templates/pmon.service.j2
+++ b/files/build_templates/pmon.service.j2
@@ -1,7 +1,7 @@
 [Unit]
 Description=Platform monitor container
-Requires=updategraph.service
-After=updategraph.service
+Requires=database.service updategraph.service
+After=database.service updategraph.service
 {% if sonic_asic_platform == 'mellanox' %}
 After=syncd.service
 {% endif %}