diff --git a/README.md b/README.md
index eb8ff08..86660fb 100644
--- a/README.md
+++ b/README.md
@@ -113,6 +113,7 @@ These are the available attributes and their corresponding PHPDoc annotations:
 | Attribute                                                                                         | PHPDoc Annotations |
 |---------------------------------------------------------------------------------------------------|--------------------|
 | [Deprecated](https://github.com/php-static-analysis/attributes/blob/main/doc/Deprecated.md)                       | `@deprecated`             |
+| [Internal](https://github.com/php-static-analysis/attributes/blob/main/doc/Internal.md)                           | `@internal`               |
 | [IsReadOnly](https://github.com/php-static-analysis/attributes/blob/main/doc/IsReadOnly.md)       | `@readonly`        |
 | [Method](https://github.com/php-static-analysis/attributes/blob/main/doc/Method.md)                               | `@method`                 |
 | [Param](https://github.com/php-static-analysis/attributes/blob/main/doc/Param.md)                 | `@param`           |
diff --git a/composer.json b/composer.json
index f1b24e4..e3f637b 100644
--- a/composer.json
+++ b/composer.json
@@ -28,7 +28,7 @@
     "require": {
         "php": ">=8.0",
         "cweagans/composer-patches": "^1.7",
-        "php-static-analysis/attributes": "^0.1.8 || dev-main",
+        "php-static-analysis/attributes": "^0.1.9 || dev-main",
         "rector/rector": "^0.19 || ^1.0"
     },
     "require-dev": {
diff --git a/config/sets/php-static-analysis-annotations-to-attributes.php b/config/sets/php-static-analysis-annotations-to-attributes.php
index fdf76e0..1134b18 100644
--- a/config/sets/php-static-analysis-annotations-to-attributes.php
+++ b/config/sets/php-static-analysis-annotations-to-attributes.php
@@ -3,6 +3,7 @@
 declare(strict_types=1);
 
 use PhpStaticAnalysis\Attributes\Deprecated;
+use PhpStaticAnalysis\Attributes\Internal;
 use PhpStaticAnalysis\Attributes\Method;
 use PhpStaticAnalysis\Attributes\PropertyRead;
 use PhpStaticAnalysis\Attributes\PropertyWrite;
@@ -23,6 +24,7 @@
         AnnotationsToAttributesRector::class,
         [
             new AnnotationToAttribute('deprecated', Deprecated::class),
+            new AnnotationToAttribute('internal', Internal::class),
             new AnnotationToAttribute('method', Method::class),
             new AnnotationToAttribute('param', Param::class),
             new AnnotationToAttribute('property', Property::class),
diff --git a/src/AnnotationsToAttributesRector.php b/src/AnnotationsToAttributesRector.php
index 9f4acce..942d339 100644
--- a/src/AnnotationsToAttributesRector.php
+++ b/src/AnnotationsToAttributesRector.php
@@ -227,7 +227,7 @@ private function processAnnotations(PhpDocInfo $phpDocInfo): array
             }
 
             $tagValueNode = $phpDocChildNode->value;
-            $attributeComment = null;
+            $attributeComment = '';
             switch (true) {
                 case $tagValueNode instanceof MethodTagValueNode:
                     $methodSignature = (string)($tagValueNode);
@@ -276,7 +276,17 @@ private function processAnnotations(PhpDocInfo $phpDocInfo): array
                 case $tagValueNode instanceof DeprecatedTagValueNode:
                 case $tagValueNode instanceof GenericTagValueNode:
                     $args = [];
-                    $attributeComment = (string)$tagValueNode;
+                    if ($phpDocChildNode->name === '@psalm-internal') {
+                        $remainingText = (string)$tagValueNode;
+                        $parts = explode(' ', $remainingText);
+                        $namespace = array_shift($parts);
+                        if ($namespace) {
+                            $args[] = new Node\Arg(new Scalar\String_($namespace));
+                            $attributeComment = implode(' ', $parts);
+                        }
+                    } else {
+                        $attributeComment = (string)$tagValueNode;
+                    }
                     break;
                 default:
                     continue 2;
diff --git a/tests/Fixture/InternalAttributeTest.php.inc b/tests/Fixture/InternalAttributeTest.php.inc
new file mode 100644
index 0000000..e0a292b
--- /dev/null
+++ b/tests/Fixture/InternalAttributeTest.php.inc
@@ -0,0 +1,133 @@
+<?php
+
+namespace test\PhpStaticAnalysis\RectorRule\Fixture;
+
+use PhpStaticAnalysis\Attributes\Param;
+
+/**
+ * @internal
+ */
+class InternalAttributeTest
+{
+    /**
+     * @internal
+     */
+    public const NAME = 'name';
+
+    /**
+     * @internal
+     */
+    public string $name = '';
+
+    /**
+     * @internal
+     */
+    public function getName(): void
+    {
+    }
+
+    /**
+     * @codeCoverageIgnore
+     * @internal
+     */
+    public function getMoreNames(): void
+    {
+    }
+
+    /**
+     * @internal
+     */
+    #[Param(name:'string')]
+    public function getAnotherName($name)
+    {
+        return "Hello " . $name;
+    }
+
+    /**
+     * @internal only available in the current namespace
+     */
+    public function getUserName(): void
+    {
+    }
+
+    /**
+     * @psalm-internal A\B
+     */
+    public function getPsalmName(): void
+    {
+    }
+
+    /**
+     * @psalm-internal A\B Only available in the A\B namespace
+     */
+    public function getPsalmNameWithComment(): void
+    {
+    }
+}
+
+/**
+ * @internal
+ */
+function getName(): void
+{
+}
+
+?>
+-----
+<?php
+
+namespace test\PhpStaticAnalysis\RectorRule\Fixture;
+
+use PhpStaticAnalysis\Attributes\Param;
+
+#[\PhpStaticAnalysis\Attributes\Internal]
+class InternalAttributeTest
+{
+    #[\PhpStaticAnalysis\Attributes\Internal]
+    public const NAME = 'name';
+
+    #[\PhpStaticAnalysis\Attributes\Internal]
+    public string $name = '';
+
+    #[\PhpStaticAnalysis\Attributes\Internal]
+    public function getName(): void
+    {
+    }
+
+    /**
+     * @codeCoverageIgnore
+     */
+    #[\PhpStaticAnalysis\Attributes\Internal]
+    public function getMoreNames(): void
+    {
+    }
+
+    #[Param(name:'string')]
+    #[\PhpStaticAnalysis\Attributes\Internal]
+    public function getAnotherName($name)
+    {
+        return "Hello " . $name;
+    }
+
+    #[\PhpStaticAnalysis\Attributes\Internal] // only available in the current namespace
+    public function getUserName(): void
+    {
+    }
+
+    #[\PhpStaticAnalysis\Attributes\Internal('A\B')]
+    public function getPsalmName(): void
+    {
+    }
+
+    #[\PhpStaticAnalysis\Attributes\Internal('A\B')] // Only available in the A\B namespace
+    public function getPsalmNameWithComment(): void
+    {
+    }
+}
+
+#[\PhpStaticAnalysis\Attributes\Internal]
+function getName(): void
+{
+}
+
+?>