diff --git a/tests_env/composer.json b/tests_env/composer.json
index 7e0ed8960c..62ee29e4e2 100644
--- a/tests_env/composer.json
+++ b/tests_env/composer.json
@@ -20,10 +20,12 @@
   },
   "scripts": {
     "post-install-cmd": [
-      "php ./tasks/fix-php82-codeception.php"
+      "php ./tasks/fix-php82-codeception.php",
+      "php ./tasks/fix-php83-codeception.php"
     ],
     "post-update-cmd": [
-      "php ./tasks/fix-php82-codeception.php"
+      "php ./tasks/fix-php82-codeception.php",
+      "php ./tasks/fix-php83-codeception.php"
     ]
   }
 }
diff --git a/tests_env/tasks/fix-php83-codeception.php b/tests_env/tasks/fix-php83-codeception.php
new file mode 100644
index 0000000000..3477a8c14c
--- /dev/null
+++ b/tests_env/tasks/fix-php83-codeception.php
@@ -0,0 +1,68 @@
+<?php
+
+// throw exception if anything fails
+set_error_handler(function ($severity, $message, $file, $line) {
+  throw new ErrorException($message, 0, $severity, $file, $line);
+});
+
+// Fixes for PHP8.3 Compatibility when Generator classes use dynamic properties which are deprecated
+$codeceptionActionsFind = <<<'CODE'
+    protected $name;
+    protected $settings;
+    protected $modules = [];
+    protected $actions;
+    protected $numMethods = 0;
+CODE;
+
+$codeceptionActorFind = <<<'CODE'
+    protected $settings;
+    protected $modules;
+    protected $actions;
+CODE;
+
+$codeceptionActorReplacement = <<<'CODE'
+    protected $settings;
+    protected $di;
+    protected $moduleContainer;
+    protected $modules;
+    protected $actions;
+CODE;
+
+$codeceptionActionsReplacement = <<<'CODE'
+    protected $name;
+    protected $di;
+    protected $moduleContainer;
+    protected $settings;
+    protected $modules = [];
+    protected $actions;
+    protected $numMethods = 0;
+CODE;
+
+// Development packages
+$replacements = [
+  [
+    'file' => __DIR__ . '/../vendor/codeception/codeception/src/Codeception/Lib/Generator/Actions.php',
+    'find' => [
+      $codeceptionActionsFind
+    ],
+    'replace' => [
+      $codeceptionActionsReplacement,
+    ],
+  ],
+  [
+    'file' => __DIR__ . '/../vendor/codeception/codeception/src/Codeception/Lib/Generator/Actor.php',
+    'find' => [
+      $codeceptionActorFind
+    ],
+    'replace' => [
+      $codeceptionActorReplacement,
+    ],
+  ],
+];
+
+// Apply replacements
+foreach ($replacements as $singleFile) {
+  $data = file_get_contents($singleFile['file']);
+  $data = str_replace($singleFile['find'], $singleFile['replace'], $data);
+  file_put_contents($singleFile['file'], $data);
+}