diff --git a/Dockerfile b/Dockerfile
index aad8bf4..218aba0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -35,6 +35,7 @@ COPY unbound.conf /etc/unbound/unbound.conf
 
 EXPOSE 53/udp
 EXPOSE 53/tcp
+EXPOSE 443/tcp
 EXPOSE 853/tcp
 
 VOLUME /etc/unbound