diff --git a/Dockerfile b/Dockerfile
index 8856d1493a..a5f20c4c3c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,7 @@
 FROM rust:1.43.1 AS builder
-RUN apt-get update && apt-get install -y cmake
-COPY . lighthouse
+RUN apt-get update && apt-get install -y cmake git
+RUN git clone https://github.com/sigp/lighthouse
+RUN echo "nameserver 8.8.8.8" > /etc/resolv.conf
 RUN cd lighthouse && make
 RUN cd lighthouse && cargo install --path lcli --locked