diff --git a/Dockerfile b/Dockerfile
index ffcb0c7..859c945 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,7 +1,9 @@
-#FROM ubuntu:18.04
+FROM ubuntu:18.04
 #FROM nvidia/opengl:1.2-glvnd-runtime-ubuntu18.04 
-FROM nvidia/vulkan:1.1.121-cuda-10.1--ubuntu18.04
+#FROM nvidia/vulkan:1.1.121-cuda-10.1--ubuntu18.04
+
 LABEL maintainer="ikko@hosei.ac.jp"
+
 RUN sed -i 's#http://archive.ubuntu.com/ubuntu/#mirror://mirrors.ubuntu.com/mirrors.txt#' /etc/apt/sources.list;
 
 ARG CARLA_VERSION_FULL=0.9.10.1
@@ -79,8 +81,8 @@
 # Almost same procesure as nvidia/driver https://gitlab.com/nvidia/driver/blob/master/ubuntu16.04/Dockerfile
 
 # (1-1) Install prerequisites
-RUN dpkg --add-architecture i386 && \
-    apt-get update && apt-get install -y --no-install-recommends \
+#RUN dpkg --add-architecture i386 && \
+RUN  apt-get update && apt-get install -y --no-install-recommends \
         apt-utils \
         build-essential \
         ca-certificates \
@@ -91,11 +93,12 @@
         unzip \
         git \
         kmod \
-        libc6:i386 \
+        libc6 \
         pkg-config \
         libelf-dev && \
     rm -rf /var/lib/apt/lists/*
 
+#        libc6:i386 \
 # (1-2) Install xorg server and xinit BEFORE INSTALLING NVIDIA DRIVER.
 # After this installation, command Xorg and xinit can be used in the container
 # if you need full ubuntu desktop environment, the line below should be added.
@@ -135,7 +138,7 @@
 RUN apt-get update && apt-get install -y --no-install-recommends \
         automake autoconf libssl-dev xorg-dev libvncserver-dev xdg-user-dirs xdg-utils && \
     rm -rf /var/lib/apt/lists/* && \
-    git clone https://github.com/LibVNC/x11vnc.git && \
+    git clone -b 0.9.16 https://github.com/LibVNC/x11vnc.git && \
     cd x11vnc && \
     ./autogen.sh && \
     make && \
diff --git a/run.sh b/run.sh
index b545c1c..4c31fa4 100755
--- a/run.sh
+++ b/run.sh
@@ -1,7 +1,6 @@
 # docker run --device=/dev/tty0:rw -it --rm --gpus all \
 docker run --privileged -it --rm --gpus all \
   -p 6080:8081 \
-  -p 5901:5901 \
   -p 2000-2002:2000-2002 \
   -v /dev/shm:/dev/shm \
   -e NVIDIA_VISIBLE_DEVICES=all \