diff --git a/README.md b/README.md
index 8a19e20..2c8a6bc 100644
--- a/README.md
+++ b/README.md
@@ -43,7 +43,7 @@
 - **Easy to install** : One step automated installer with migration from EasyEngine v3 support
 - **Fast deployment** : Fast and automated WordPress, Nginx, PHP, MySQL & Redis installation
 - **Custom Nginx build** : Nginx 1.18.0 - TLS v1.3 Cloudflare HTTP/2 HPACK & Brotli support
-- **Up-to-date** : PHP 7.2, 7.3 & 7.4, MariaDB 10.5 & Redis 6.0
+- **Up-to-date** : PHP 7.2, 7.3, 7.4, 8.0 & 8.1 - MariaDB 10.5 & Redis 6.0
 - **Secured** : Hardened WordPress security with strict Nginx location directives
 - **Powerful** : Optimized Nginx configurations with multiple cache backends support
 - **SSL** : Domain, Subdomain & Wildcard Let's Encrypt SSL certificates with DNS API support
@@ -64,7 +64,6 @@
 
 #### Also compatible
 
-- Ubuntu 16.04 LTS (Xenial)
 - Debian 9 (Stretch)
 - Debian 10 (Buster)
 - Raspbian 9 (Stretch)
@@ -135,6 +134,8 @@ wo site create example.com --proxy=127.0.0.1:3000 #  create example.com with ngi
 wo site update example.com --php72 # switch to PHP 7.2
 wo site update example.com --php73 # switch to PHP 7.3
 wo site update example.com --php74 # switch to PHP 7.4
+wo site update example.com --php80 # switch to PHP 8.0
+wo site update example.com --php81 # switch to PHP 8.1
 ```
 
 ### Sites secured with Let's Encrypt
diff --git a/config/wo.conf b/config/wo.conf
index 37376f7..ceb2827 100644
--- a/config/wo.conf
+++ b/config/wo.conf
@@ -79,7 +79,7 @@ keylength = "ec-384"
 [php]
 
 ### Default PHP version
-version = 7.4
+version = 8.0
 
 [mariadb]
 
diff --git a/wo/cli/plugins/site_functions.py b/wo/cli/plugins/site_functions.py
index 26a962d..f3c6b24 100644
--- a/wo/cli/plugins/site_functions.py
+++ b/wo/cli/plugins/site_functions.py
@@ -884,7 +884,7 @@ def site_package_check(self, stype):
         (pargs.php74 and pargs.php80) or (pargs.php80 and pargs.php81) or
         (pargs.php72 and pargs.php80) or (pargs.php72 and pargs.php81) or
         (pargs.php73 and pargs.php81) or (pargs.php74 and pargs.php81) or
-        (pargs.php80 and pargs.php81)):
+            (pargs.php80 and pargs.php81)):
         Log.error(
             self, "Error: two different PHP versions cannot be "
                   "combined within the same WordOps site")
@@ -894,8 +894,8 @@ def site_package_check(self, stype):
         stype in ['php', 'mysql', 'wp', 'wpsubdir',
                   'wpsubdomain']):
         Log.debug(self, "Setting apt_packages variable for PHP")
-        php_check = 'php7.3-fpm'
-        php_to_setup = WOVar.wo_php73
+        php_check = 'php8.0-fpm'
+        php_to_setup = WOVar.wo_php80
         if self.app.config.has_section('php'):
             config_php_ver = self.app.config.get(
                 'php', 'version')
@@ -915,11 +915,11 @@ def site_package_check(self, stype):
                 php_check = 'php8.1-fpm'
                 php_to_setup = WOVar.wo_php81
             else:
-                php_check = 'php7.3-fpm'
-                php_to_setup = WOVar.wo_php73
+                php_check = 'php8.0-fpm'
+                php_to_setup = WOVar.wo_php80
         else:
-            php_check = 'php7.3-fpm'
-            php_to_setup = WOVar.wo_php73
+            php_check = 'php8.0-fpm'
+            php_to_setup = WOVar.wo_php80
 
         if not (WOAptGet.is_installed(self, php_check)):
             apt_packages = apt_packages + php_to_setup + WOVar.wo_php_extra