diff --git a/Dockerfile b/Dockerfile
index 29ad08729..57d3894dd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -36,10 +36,11 @@ RUN dos2unix /etc/cron.d/cronjobs && \
     echo 'pm.max_children = 15' >> /usr/local/etc/php-fpm.d/zz-docker.conf && \
     echo 'pm.max_requests = 500' >> /usr/local/etc/php-fpm.d/zz-docker.conf
 
-# Expose port 80 for Nginx
-EXPOSE 80
+# Default port
+ENV PORT 80
 
-ARG SOFTWARE_VERSION=1.20.0
+# Expose the port
+EXPOSE ${PORT}
 
 # Start both PHP-FPM, Nginx
 CMD ["sh", "-c", "/var/www/html/startup.sh"]
diff --git a/includes/version.php b/includes/version.php
index 9f22fc4f0..f9c07a770 100644
--- a/includes/version.php
+++ b/includes/version.php
@@ -1,3 +1,3 @@
 <?php
-$version = "v2.32.0";
+$version = "v2.33.0";
 ?>
\ No newline at end of file
diff --git a/nginx.conf b/nginx.conf
index 284ea77e1..db136c580 100644
--- a/nginx.conf
+++ b/nginx.conf
@@ -22,7 +22,7 @@ http {
     keepalive_timeout  65;
 
     server {
-        listen       80;
+        listen       ${PORT};
         server_name  localhost;
 
         location / {