diff --git a/composer.json b/composer.json
index c61aace868..4bcc3f6756 100644
--- a/composer.json
+++ b/composer.json
@@ -158,7 +158,8 @@
     },
     "require-dev": {
         "phpunit/phpunit": "*",
-        "squizlabs/php_codesniffer": "*"
+        "squizlabs/php_codesniffer": "*",
+        "phpcompatibility/php-compatibility": "^9.3"
     },
     "autoload": {
         "classmap": ["lib/", "plugins/"]
diff --git a/phpcs3.xml b/phpcs3.xml
index 0554400eb8..16b442b7fe 100644
--- a/phpcs3.xml
+++ b/phpcs3.xml
@@ -6,6 +6,8 @@
     <arg name="extensions" value="php"/>
     <arg name="parallel" value="100"/>
     <arg name="warning-severity" value="0"/>
+    <config name="testVersion" value="8.2-"/>
+    <config name="installed_paths" value="vendor/phpcompatibility/php-compatibility" />
 
     <exclude-pattern>*/vendor/*</exclude-pattern>
     <exclude-pattern>*/templates_c/*</exclude-pattern>
@@ -18,4 +20,5 @@
         <exclude name="Squiz.Classes.ValidClassName"/>
     </rule>
 
+    <rule ref="PHPCompatibility"/>
 </ruleset>