diff --git a/Dockerfile b/Dockerfile
index 313bb97..496660b 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,16 +1,13 @@
 FROM ruby:2.5.1
 
-# install google chrome
-RUN wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -
-RUN sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google-chrome.list'
-RUN apt-get -y update
-RUN apt-get install -y google-chrome-stable
-#RUN apt-get remove -y google-chrome-stable
-#RUN wget -O /tmp/chrome.deb http://dl.google.com/linux/chrome/deb/pool/main/g/google-chrome-stable/google-chrome-stable_73.0.3683.75-1_amd64.deb && dpkg -i /tmp/chrome.deb && rm /tmp/chrome.deb
+# install Chromium
+RUN apt-get update
+# stretch uses chromium package not chromium-browser
+RUN apt-get install chromium=73.0* -y
 
 # install chromedriver
 RUN apt-get install -yqq unzip
-RUN wget -O /tmp/chromedriver.zip http://chromedriver.storage.googleapis.com/`curl -sS chromedriver.storage.googleapis.com/LATEST_RELEASE`/chromedriver_linux64.zip
+RUN wget -O /tmp/chromedriver.zip https://chromedriver.storage.googleapis.com/2.46/chromedriver_linux64.zip
 RUN unzip /tmp/chromedriver.zip chromedriver -d /usr/local/bin/
 
 # install xvfb
@@ -21,10 +18,11 @@ ENV DISPLAY=:99
 ENV DBUS_SESSION_BUS_ADDRESS=/dev/null
 
 RUN gem install watir webdrivers nokogiri
-
+RUN gem install watir-performance -v 0.6.4
 COPY entrypoint.sh /root/entrypoint.sh
 
 RUN mkdir /app
 WORKDIR /app
 
+RUN chmod a+x /root/entrypoint.sh
 ENTRYPOINT ["/root/entrypoint.sh"]
diff --git a/entrypoint.sh b/entrypoint.sh
index eb7c4ce..4a40d95 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -1,7 +1,7 @@
 #!/bin/bash
 
 set -e
-echo "Starting X virtual framebuffer (Xvfb) in background..."
+#echo "Starting X virtual framebuffer (Xvfb) in background..."
 Xvfb -ac :99 -screen 0 1280x1024x16 > /dev/null 2>&1 &
 export DISPLAY=:99