diff --git a/Dockerfile b/Dockerfile
index 45a09e3..fb0a0f2 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -30,6 +30,7 @@ COPY . /app/
 WORKDIR /app/
 
 ENV DOCKER_HOST unix:///tmp/docker.sock
+ENV RESOLVERS="127.0.0.11 valid=5s"
 
 VOLUME ["/etc/nginx/certs", "/etc/nginx/dhparam"]