diff --git a/docker/services/varnish b/docker/services/varnish
index 7a90fa6..7749599 100644
--- a/docker/services/varnish
+++ b/docker/services/varnish
@@ -4,6 +4,8 @@
       - "80:80/tcp"
       - "443:443/tcp"
       - "443:443/udp"
+    sysctl:
+      net.ipv4.ip_unprivileged_port_start: 0
     environment:
       - VARNISH_SIZE=2G
     tmpfs: