diff --git a/README.md b/README.md
index de24cf0..046f0ed 100644
--- a/README.md
+++ b/README.md
@@ -99,23 +99,25 @@ 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`                 |
-| [Mixin](https://github.com/php-static-analysis/attributes/blob/main/doc/Mixin.md)                                 | `@mixin`                  |
-| [Param](https://github.com/php-static-analysis/attributes/blob/main/doc/Param.md)                 | `@param`           |
-| [ParamOut](https://github.com/php-static-analysis/attributes/blob/main/doc/ParamOut.md)                           | `@param-out`                         |
-| [Property](https://github.com/php-static-analysis/attributes/blob/main/doc/Property.md)           | `@property` `@var` |
-| [PropertyRead](https://github.com/php-static-analysis/attributes/blob/main/doc/PropertyRead.md)   | `@property-read`   |
-| [PropertyWrite](https://github.com/php-static-analysis/attributes/blob/main/doc/PropertyWrite.md) | `@property-write`  |
-| [RequireExtends](https://github.com/php-static-analysis/attributes/blob/main/doc/RequireExtends.md)        | `@require-extends`                   |
-| [RequireImplements](https://github.com/php-static-analysis/attributes/blob/main/doc/RequireImplements.md)            | `@require-implements`                |
-| [Returns](https://github.com/php-static-analysis/attributes/blob/main/doc/Returns.md)             | `@return`          |
-| [SelfOut](https://github.com/php-static-analysis/attributes/blob/main/doc/SelfOut.md)                             | `@self-out` `@this-out`               |
-| [Template](https://github.com/php-static-analysis/attributes/blob/main/doc/Template.md)           | `@template`        |
-| [TemplateCovariant](https://github.com/php-static-analysis/attributes/blob/main/doc/TemplateCovariant.md)         | `@template-covariant`     |
-| [TemplateExtends](https://github.com/php-static-analysis/attributes/blob/main/doc/TemplateExtends.md)             | `@extends` `@template-extends` |
-| [TemplateImplements](https://github.com/php-static-analysis/attributes/blob/main/doc/TemplateImplements.md)             | `@implements` `@template-implements` |
-| [TemplateUse](https://github.com/php-static-analysis/attributes/blob/main/doc/TemplateUse.md)             | `@use` `@template-use` |
-| [Type](https://github.com/php-static-analysis/attributes/blob/main/doc/Type.md)                   | `@var` `@return`   |
+| [Deprecated](https://github.com/php-static-analysis/attributes/blob/main/doc/Deprecated.md)                        | `@deprecated`                        |
+| [Impure](https://github.com/php-static-analysis/attributes/blob/main/doc/Impure.md)                                | `@impure`                            |
+| [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`                            |
+| [Mixin](https://github.com/php-static-analysis/attributes/blob/main/doc/Mixin.md)                                  | `@mixin`                             |
+| [Param](https://github.com/php-static-analysis/attributes/blob/main/doc/Param.md)                                  | `@param`                             |
+| [ParamOut](https://github.com/php-static-analysis/attributes/blob/main/doc/ParamOut.md)                            | `@param-out`                         |
+| [Property](https://github.com/php-static-analysis/attributes/blob/main/doc/Property.md)                            | `@property` `@var`                   |
+| [PropertyRead](https://github.com/php-static-analysis/attributes/blob/main/doc/PropertyRead.md)                    | `@property-read`                     |
+| [PropertyWrite](https://github.com/php-static-analysis/attributes/blob/main/doc/PropertyWrite.md)                  | `@property-write`                    |
+| [Pure](https://github.com/php-static-analysis/attributes/blob/main/doc/Pure.md)                                    | `@pure`                              |
+| [RequireExtends](https://github.com/php-static-analysis/attributes/blob/main/doc/RequireExtends.md)                | `@require-extends`                   |
+| [RequireImplements](https://github.com/php-static-analysis/attributes/blob/main/doc/RequireImplements.md)          | `@require-implements`                |
+| [Returns](https://github.com/php-static-analysis/attributes/blob/main/doc/Returns.md)                              | `@return`                            |
+| [SelfOut](https://github.com/php-static-analysis/attributes/blob/main/doc/SelfOut.md)                              | `@self-out` `@this-out`              |
+| [Template](https://github.com/php-static-analysis/attributes/blob/main/doc/Template.md)                            | `@template`                          |
+| [TemplateCovariant](https://github.com/php-static-analysis/attributes/blob/main/doc/TemplateCovariant.md)          | `@template-covariant`                |
+| [TemplateExtends](https://github.com/php-static-analysis/attributes/blob/main/doc/TemplateExtends.md)              | `@extends` `@template-extends`       |
+| [TemplateImplements](https://github.com/php-static-analysis/attributes/blob/main/doc/TemplateImplements.md)        | `@implements` `@template-implements` |
+| [TemplateUse](https://github.com/php-static-analysis/attributes/blob/main/doc/TemplateUse.md)                      | `@use` `@template-use`               |
+| [Type](https://github.com/php-static-analysis/attributes/blob/main/doc/Type.md)                                    | `@var` `@return`                     |
diff --git a/composer.json b/composer.json
index e2c8765..bdfbcff 100644
--- a/composer.json
+++ b/composer.json
@@ -26,8 +26,8 @@
     "require": {
         "php": ">=8.0",
         "ext-simplexml": "*",
-        "php-static-analysis/attributes": "^0.1.14 || dev-main",
-        "php-static-analysis/node-visitor": "^0.1.14 || dev-main",
+        "php-static-analysis/attributes": "^0.1.15 || dev-main",
+        "php-static-analysis/node-visitor": "^0.1.15 || dev-main",
         "vimeo/psalm": "^5"
     },
     "require-dev": {
diff --git a/tests/PureAttributeTest.php b/tests/PureAttributeTest.php
new file mode 100644
index 0000000..27e298d
--- /dev/null
+++ b/tests/PureAttributeTest.php
@@ -0,0 +1,30 @@
+<?php
+
+namespace test\PhpStaticAnalysis\PsalmPlugin;
+
+class PureAttributeTest extends BaseAttributeTestCase
+{
+    public function testMethodPureAttribute(): void
+    {
+        $errors = $this->analyzeTestFile('/data/Pure/MethodPureAttribute.php');
+        $this->assertCount(0, $errors);
+    }
+
+    public function testFunctionPureAttribute(): void
+    {
+        $errors = $this->analyzeTestFile('/data/Pure/FunctionPureAttribute.php');
+        $this->assertCount(0, $errors);
+    }
+
+    public function testInvalidMethodPureAttribute(): void
+    {
+        $errors = $this->analyzeTestFile('/data/Pure/InvalidMethodPureAttribute.php');
+
+        $expectedErrors = [
+            'Attribute Pure is not repeatable' => 15,
+            'Attribute Pure cannot be used on a property' => 11,
+        ];
+
+        $this->checkExpectedErrors($errors, $expectedErrors);
+    }
+}
diff --git a/tests/data/Pure/FunctionPureAttribute.php b/tests/data/Pure/FunctionPureAttribute.php
new file mode 100644
index 0000000..9eac05e
--- /dev/null
+++ b/tests/data/Pure/FunctionPureAttribute.php
@@ -0,0 +1,11 @@
+<?php
+
+namespace test\PhpStaticAnalysis\PsalmPlugin\data;
+
+use PhpStaticAnalysis\Attributes\Pure;
+
+#[Pure]
+function add(int $left, int $right): int
+{
+    return $left + $right;
+}
diff --git a/tests/data/Pure/InvalidMethodPureAttribute.php b/tests/data/Pure/InvalidMethodPureAttribute.php
new file mode 100644
index 0000000..5dbd9fe
--- /dev/null
+++ b/tests/data/Pure/InvalidMethodPureAttribute.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace test\PhpStaticAnalysis\PsalmPlugin\data\Pure;
+
+use PhpStaticAnalysis\Attributes\Param;
+use PhpStaticAnalysis\Attributes\Pure;
+use PhpStaticAnalysis\Attributes\Returns;
+
+class InvalidMethodPureAttribute
+{
+    #[Pure]
+    public string $name = '';
+
+    #[Pure]
+    #[Pure]
+    public function getMoreName(): void
+    {
+    }
+}
diff --git a/tests/data/Pure/MethodPureAttribute.php b/tests/data/Pure/MethodPureAttribute.php
new file mode 100644
index 0000000..6c413aa
--- /dev/null
+++ b/tests/data/Pure/MethodPureAttribute.php
@@ -0,0 +1,31 @@
+<?php
+
+namespace test\PhpStaticAnalysis\PsalmPlugin\data\Pure;
+
+use PhpStaticAnalysis\Attributes\Pure;
+
+class MethodPureAttribute
+{
+    #[Pure]
+    public function add(int $left, int $right): int
+    {
+        return $left + $right;
+    }
+
+    /**
+     * @codeCoverageIgnore
+     */
+    #[Pure]
+    public function addAnother(int $left, int $right): int
+    {
+        return $left + $right;
+    }
+
+    /**
+     * @pure
+     */
+    public function addMore(int $left, int $right): int
+    {
+        return $left + $right;
+    }
+}