diff --git a/nasp-ubuntu/Dockerfile b/nasp-ubuntu/Dockerfile
index 4d69ee1..7b4a94c 100644
--- a/nasp-ubuntu/Dockerfile
+++ b/nasp-ubuntu/Dockerfile
@@ -4,6 +4,7 @@ FROM docker.io/nvidia/cuda:11.3.1-devel-ubuntu20.04
 RUN ln -fs /usr/share/zoneinfo/Asia/Shanghai /etc/localtime \
   && sed -i "s@http://.*archive.ubuntu.com@http://192.168.16.201/mirrors@g" /etc/apt/sources.list \
   && apt-get update -y && DEBIAN_FRONTEND=noninteractive apt-get install -yq \
+    -o Acquire::BrokenProxy="true" -o Acquire::http::No-Cache="true" -o Acquire::http::Pipeline-Depth="0" \
     build-essential cmake openssh-server git-all sudo ssh sshpass pciutils \
     python3 python3-dev python3-pip curl ca-certificates vim zsh tmux bash \
     inetutils-ping less wget dialog net-tools dnsutils netcat traceroute \
@@ -11,9 +12,9 @@ RUN ln -fs /usr/share/zoneinfo/Asia/Shanghai /etc/localtime \
   && rm -rf /var/lib/apt/list/*
 
 # mlnx ofed
-RUN cd /tmp && wget http://192.168.16.118/MLNX_OFED_LINUX-5.8-2.0.3.0-ubuntu22.04-x86_64.tgz \
-  && tar -xf MLNX_OFED_LINUX-5.8-2.0.3.0-ubuntu22.04-x86_64.tgz \
-  && cd MLNX_OFED_LINUX-5.8-2.0.3.0-ubuntu22.04-x86_64 \
+RUN cd /tmp && wget http://192.168.16.118/MLNX_OFED_LINUX-5.8-2.0.3.0-ubuntu20.04-x86_64.tgz \
+  && tar -xf MLNX_OFED_LINUX-5.8-2.0.3.0-ubuntu20.04-x86_64.tgz \
+  && cd MLNX_OFED_LINUX-5.8-2.0.3.0-ubuntu20.04-x86_64 \
   && ./mlnxofedinstall --skip-unsupported-devices-check -q \
   && rm -rf /tmp/MLNX_OFED_LINUX-5.8-*