diff --git a/.gitignore b/.gitignore
index a5468e6..d5426a5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 source_me.sh
+*.deb
diff --git a/Dockerfile b/Dockerfile
index d225eed..17e30e8 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -95,10 +95,10 @@
                        # this option cannot be used on newer driver
                        # --no-glvnd-egl-client \
                        # --no-glvnd-glx-client \
+COPY cuda-repo-ubuntu1804-11-2-local_11.2.2-460.32.03-1_amd64.deb /tmp/cuda-repo-ubuntu1804-11-2-local_11.2.2-460.32.03-1_amd64.deb
 RUN cd /tmp && \
     wget https://developer.download.nvidia.com/compute/cuda/repos/ubuntu1804/x86_64/cuda-ubuntu1804.pin && \
     mv cuda-ubuntu1804.pin /etc/apt/preferences.d/cuda-repository-pin-600 && \
-    wget https://developer.download.nvidia.com/compute/cuda/11.2.2/local_installers/cuda-repo-ubuntu1804-11-2-local_11.2.2-460.32.03-1_amd64.deb && \
     dpkg -i cuda-repo-ubuntu1804-11-2-local_11.2.2-460.32.03-1_amd64.deb && \
     apt-key add /var/cuda-repo-ubuntu1804-11-2-local/7fa2af80.pub && \
     apt-get update && apt-get install -y --no-install-recommends \
diff --git a/server.sh b/server.sh
index b91ed40..021e832 100755
--- a/server.sh
+++ b/server.sh
@@ -1,4 +1,8 @@
 #!/bin/bash
+if [ ! -e ./cuda-repo-ubuntu1804-11-2-local_11.2.2-460.32.03-1_amd64.deb ]; then
+  wget https://developer.download.nvidia.com/compute/cuda/11.2.2/local_installers/cuda-repo-ubuntu1804-11-2-local_11.2.2-460.32.03-1_amd64.deb
+fi
+
 docker build -t sim . && \
 # docker run --device=/dev/tty0:rw -it --rm --gpus all \
 docker run --privileged -it --rm --gpus all \