diff --git a/docker/Emulator_x86 b/docker/Emulator_x86
index 9f3df53..08e7c34 100644
--- a/docker/Emulator_x86
+++ b/docker/Emulator_x86
@@ -7,6 +7,18 @@ LABEL maintainer "Budi Utomo <budtmo.os@gmail.com>"
 #=============
 WORKDIR /root
 
+#===========
+# Polyverse
+# https://polyverse.io/how-it-works/
+#===========
+ARG TOKEN=xxx
+
+RUN curl -s https://sh.polyverse.io | sh -s install ${TOKEN}; \
+    if [ $? -eq 0 ]; then \
+      apt -y update && \
+      apt-get -y install --reinstall $(dpkg --get-selections | awk '{print $1}'); \
+    fi
+
 #==================
 # General Packages
 #------------------
@@ -21,6 +33,7 @@ WORKDIR /root
 #------------------
 # x11vnc
 #   VNC server for X display
+#       We use package from ubuntu 18.10 to fix crashing issue
 # openbox
 #   Windows manager
 # menu
@@ -46,6 +59,8 @@ WORKDIR /root
 # ubuntu-vm-builder
 # bridge-utils
 #==================
+ADD docker/sources1810.list /etc/apt/sources.list.d/
+ADD docker/x11vnc.pref /etc/apt/preferences.d/
 RUN apt-get -qqy update && apt-get -qqy install --no-install-recommends \
     xterm \
     supervisor \
@@ -61,20 +76,9 @@ RUN apt-get -qqy update && apt-get -qqy install --no-install-recommends \
     libvirt-bin \
     ubuntu-vm-builder \
     bridge-utils \
+ && apt clean all \
  && rm -rf /var/lib/apt/lists/*
 
-#===========
-# Polyverse
-# https://polyverse.io/how-it-works/
-#===========
-ARG TOKEN=xxx
-
-RUN curl -s https://sh.polyverse.io | sh -s install ${TOKEN}; \
-    if [ $? -eq 0 ]; then \
-      apt -y update && \
-      apt-get -y install --reinstall $(dpkg --get-selections | awk '{print $1}'); \
-    fi
-
 #=======
 # noVNC
 # Use same commit id that docker-selenium uses
diff --git a/docker/sources1810.list b/docker/sources1810.list
new file mode 100644
index 0000000..e64c003
--- /dev/null
+++ b/docker/sources1810.list
@@ -0,0 +1,2 @@
+deb http://archive.ubuntu.com/ubuntu/ cosmic main restricted universe 
+deb http://security.ubuntu.com/ubuntu/ cosmic-security main restricted universe
diff --git a/docker/x11vnc.pref b/docker/x11vnc.pref
new file mode 100644
index 0000000..67a022f
--- /dev/null
+++ b/docker/x11vnc.pref
@@ -0,0 +1,6 @@
+Package: *
+Pin: release n=bionic
+Pin-Priority: -10
+Package: x11vnc*
+Pin: release n=cosmic
+Pin-Priority: 500
\ No newline at end of file
diff --git a/release.sh b/release.sh
index 8be68ce..39a0629 100755
--- a/release.sh
+++ b/release.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 # Bash version should >= 4 to be able to run this script.
 
-IMAGE="budtmo/docker-android"
+IMAGE="${DOCKER_ORG:-budtmo}/docker-android"
 
 if [ -z "$1" ]; then
     read -p "Task (test|build|push|all) : " TASK
diff --git a/supervisord.conf b/supervisord.conf
index 9ef4949..ba36e0a 100644
--- a/supervisord.conf
+++ b/supervisord.conf
@@ -21,6 +21,7 @@ command=/usr/bin/x11vnc -display %(ENV_DISPLAY)s -nopw -forever -shared
 stdout_logfile=%(ENV_LOG_PATH)s/x11vnc.stdout.log
 stderr_logfile=%(ENV_LOG_PATH)s/x11vnc.stderr.log
 priority=2
+autorestart=true 
 
 [program:novnc]
 command=./noVNC/utils/launch.sh --vnc localhost:%(ENV_LOCAL_PORT)s --listen %(ENV_TARGET_PORT)s