diff --git a/composer.json b/composer.json
index 55b527f..d3cd8de 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
 
     "minimum-stability": "stable",
     "require":           {
-        "php": "^8.1"
+        "php": "^7.4 || ^8.0.0"
     },
     "autoload":          {
         "psr-4":                 {
diff --git a/src/Reflection/ReflectionNamespace.php b/src/Reflection/ReflectionNamespace.php
index cd4f272..2682794 100644
--- a/src/Reflection/ReflectionNamespace.php
+++ b/src/Reflection/ReflectionNamespace.php
@@ -5,7 +5,6 @@ namespace jrosset\Reflection;
 
 use FilesystemIterator;
 use ReflectionClass;
-use ReflectionEnum;
 use ReflectionException;
 
 /**
@@ -42,7 +41,7 @@ class ReflectionNamespace {
      * @param string          $name        The namespace name
      * @param string[]|string $directories The list of directories that maps the namespace
      */
-    public function __construct (string $name, array|string $directories) {
+    public function __construct (string $name, $directories) {
         $this->name = self::normalizeNamespaceName($name);
 
         if (!is_array($directories)) {
@@ -61,7 +60,7 @@ class ReflectionNamespace {
      *
      * @throws ReflectionException If the namespace can not be found with the mapping
      */
-    public static function createFromMapping (string $name, array $mapping): static {
+    public static function createFromMapping (string $name, array $mapping): self {
         $nsReflection = new static ($name, []);
 
         //region Normalize the mapping
@@ -119,7 +118,7 @@ class ReflectionNamespace {
      *
      * @throws ReflectionException If the namespace can not be found
      */
-    public static function createFromComposerMapping (string $name, string $vendorDirectoryPath): static {
+    public static function createFromComposerMapping (string $name, string $vendorDirectoryPath): self {
         $composerDirectory = static::normalizeDirectoryPath($vendorDirectoryPath) . DIRECTORY_SEPARATOR . 'composer';
         if (!file_exists($composerDirectory) || !is_dir($vendorDirectoryPath) || !is_readable($vendorDirectoryPath)) {
             throw new ReflectionException('Unable to find composer directory: ' . $composerDirectory);
@@ -188,7 +187,7 @@ class ReflectionNamespace {
      *
      * @return static|null The parent namespace or Null if there is no parent
      */
-    public function getParent (): ?static {
+    public function getParent (): ?self {
         if (($parentNamespaceName = $this->getParentName()) === null) {
             return null;
         }
@@ -216,7 +215,7 @@ class ReflectionNamespace {
      *
      * @throws ReflectionException If the sub namespace doesn't exist
      */
-    public function getSubNamespace (string $subNamespaceName): static {
+    public function getSubNamespace (string $subNamespaceName): self {
         $this->checkValidDirectories();
 
         $subNamespaceDirectories = [];
@@ -336,12 +335,12 @@ class ReflectionNamespace {
             try {
                 $classReflection = new ReflectionClass($this->getName() . '\\' . $element);
             }
-            catch (ReflectionException) {
+            catch (ReflectionException $exception) {
                 continue;
             }
             //endregion
             //region Check it is a class (ignore interfaces and traits)
-            if ($classReflection->isInterface() || $classReflection->isTrait() || $classReflection->isEnum()) {
+            if ($classReflection->isInterface() || $classReflection->isTrait()) {
                 continue;
             }
             //endregion
@@ -395,7 +394,7 @@ class ReflectionNamespace {
             try {
                 $interfaceReflection = new ReflectionClass($this->getName() . '\\' . $element);
             }
-            catch (ReflectionException) {
+            catch (ReflectionException $exception) {
                 continue;
             }
             //endregion
@@ -446,7 +445,7 @@ class ReflectionNamespace {
             try {
                 $traitReflection = new ReflectionClass($this->getName() . '\\' . $element);
             }
-            catch (ReflectionException) {
+            catch (ReflectionException $exception) {
                 continue;
             }
             //endregion
@@ -463,48 +462,6 @@ class ReflectionNamespace {
         return $traits;
     }
 
-    /**
-     * Get an enum of the namespace
-     *
-     * @param string $enumName The enum name
-     *
-     * @return ReflectionEnum The reflection enum
-     *
-     * @throws ReflectionException If the enum doesn't exist
-     */
-    public function getEnum (string $enumName): ReflectionEnum {
-        return new ReflectionEnum($this->getName() . '\\' . $enumName);
-    }
-    /**
-     * Get the enums of the namespace
-     *
-     * @param bool $recursive Search also in sub namespaces
-     *
-     * @return ReflectionEnum[] The list of enums
-     *
-     * @throws ReflectionException If the namespace has no configured directories
-     */
-    public function getEnums (bool $recursive = false): array {
-        $traits = [];
-
-        //region For each valid element of the namespace
-        foreach ($this->getValidElements($recursive) as $element) {
-            //region Try to get the reflection class
-            try {
-                $enumReflection = new ReflectionEnum($this->getName() . '\\' . $element);
-            }
-            catch (ReflectionException) {
-                continue;
-            }
-            //endregion
-
-            $traits[] = $enumReflection;
-        }
-        //endregion
-
-        return $traits;
-    }
-
     /**
      * The list of directories that maps the namespace
      *
@@ -518,7 +475,7 @@ class ReflectionNamespace {
      *
      * @param string[] $directories The list of directories that maps the namespace
      */
-    public function setDirectories (array $directories): static {
+    public function setDirectories (array $directories): self {
         $this->directories = array_unique(static::normalizeDirectoriesPath($directories));
         return $this;
     }
diff --git a/tests/SubTests1/Enum1.php b/tests/SubTests1/Enum1.php
deleted file mode 100644
index c2dfde4..0000000
--- a/tests/SubTests1/Enum1.php
+++ /dev/null
@@ -1,8 +0,0 @@
-<?php
-
-namespace Tests\SubTests1;
-
-enum Enum1 {
-    case One;
-    case Two;
-}
diff --git a/tests/SubTests1/SubSubTests11/Enum11.php b/tests/SubTests1/SubSubTests11/Enum11.php
deleted file mode 100644
index 386b1da..0000000
--- a/tests/SubTests1/SubSubTests11/Enum11.php
+++ /dev/null
@@ -1,8 +0,0 @@
-<?php
-
-namespace Tests\SubTests1\SubSubTests11;
-
-enum Enum11: int {
-    case One = 1;
-    case Two = 2;
-}
diff --git a/tests/test.php b/tests/test.php
index 0f9496c..89b03ba 100644
--- a/tests/test.php
+++ b/tests/test.php
@@ -27,8 +27,3 @@ echo '===== TRAITS =====' . PHP_EOL;
 foreach ($tests->getTraits(true) as $trait) {
     echo "\t - " . $trait->getName() . PHP_EOL;
 }
-
-echo '===== ENUMS =====' . PHP_EOL;
-foreach ($tests->getEnums(true) as $enum) {
-    echo "\t - " . $enum->getName() . ($enum->isBacked() ? ' (backed)' : '') . PHP_EOL;
-}
\ No newline at end of file