diff --git a/Dockerfile b/Dockerfile
index 716a757..d33d452 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM node:12
+FROM node:18
 
 # Install dependencies for running Chrome, an X server, and VNC server
 RUN apt-get update &&\
@@ -10,18 +10,18 @@ RUN apt-get update &&\
     xvfb x11vnc x11-xkb-utils xfonts-100dpi xfonts-75dpi xfonts-scalable xfonts-cyrillic x11-apps 
 
 # Install latest version of google-chrome-stable
-RUN apt-get update && apt-get install -y wget --no-install-recommends \
-    && wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add - \
+RUN apt-get update && apt-get install gnupg wget -y \
+    && wget --quiet --output-document=- https://dl-ssl.google.com/linux/linux_signing_key.pub | gpg --dearmor > /etc/apt/trusted.gpg.d/google-archive.gpg \
     && sh -c 'echo "deb [arch=amd64] http://dl.google.com/linux/chrome/deb/ stable main" >> /etc/apt/sources.list.d/google.list' \
     && apt-get update \
-    && apt-get install -y google-chrome-stable fonts-ipafont-gothic fonts-wqy-zenhei fonts-thai-tlwg fonts-kacst ttf-freefont \
+    && apt-get install -y google-chrome-stable fonts-ipafont-gothic fonts-wqy-zenhei fonts-thai-tlwg fonts-kacst fonts-freefont-ttf \
     --no-install-recommends \
     && rm -rf /var/lib/apt/lists/* \
     && apt-get purge --auto-remove -y curl \
     && rm -rf /src/*.deb
 
 # Use dumb-init to kill zombie processes
-ADD https://github.com/Yelp/dumb-init/releases/download/v1.2.2/dumb-init_1.2.2_x86_64 /usr/local/bin/dumb-init
+ADD https://github.com/Yelp/dumb-init/releases/download/v1.2.5/dumb-init_1.2.5_x86_64 /usr/local/bin/dumb-init
 
 RUN chmod +x /usr/local/bin/dumb-init
 
diff --git a/README.md b/README.md
index ce2ebb5..e3b10cf 100644
--- a/README.md
+++ b/README.md
@@ -39,7 +39,10 @@ When you're ready, declare the environment name with:
 
 ### Windows
 
-`$ set NODE_ENV=local`
+For cmd use
+`$ set NODE_ENV=local` or `$ setx NODE_ENV=local`
+For powershell use
+`$env:NODE_ENV="local`
 
 ### How to populate the .env file