diff --git a/src/Rules/PHPUnit/AttributeRequiresPhpVersionRule.php b/src/Rules/PHPUnit/AttributeRequiresPhpVersionRule.php
index 913ffea..b5521f7 100644
--- a/src/Rules/PHPUnit/AttributeRequiresPhpVersionRule.php
+++ b/src/Rules/PHPUnit/AttributeRequiresPhpVersionRule.php
@@ -7,6 +7,7 @@
 use PHPStan\Node\InClassMethodNode;
 use PHPStan\Rules\Rule;
 use PHPUnit\Framework\TestCase;
+use function array_merge;
 
 /**
  * @implements Rule<InClassMethodNode>
@@ -44,8 +45,11 @@ public function processNode(Node $node, Scope $scope): array
 			return [];
 		}
 
-		return $this->attributeVersionRequirementHelper->checkRequiresPhpVersion(
-			$reflectionMethod->getAttributesByName('PHPUnit\Framework\Attributes\RequiresPhp'),
+		return $this->attributeVersionRequirementHelper->checkVersionRequirement(
+			array_merge(
+				$reflectionMethod->getAttributesByName('PHPUnit\Framework\Attributes\RequiresPhp'),
+				$reflectionMethod->getAttributesByName('PHPUnit\Framework\Attributes\RequiresPhpunit'),
+			),
 			$scope,
 		);
 	}
diff --git a/src/Rules/PHPUnit/AttributeVersionRequirementHelper.php b/src/Rules/PHPUnit/AttributeVersionRequirementHelper.php
index 22ae5ab..966c2bf 100644
--- a/src/Rules/PHPUnit/AttributeVersionRequirementHelper.php
+++ b/src/Rules/PHPUnit/AttributeVersionRequirementHelper.php
@@ -61,7 +61,7 @@ public function __construct(
 	 *
 	 * @return list<IdentifierRuleError>
 	 */
-	public function checkRequiresPhpVersion(array $attributes, Scope $scope): array
+	public function checkVersionRequirement(array $attributes, Scope $scope): array
 	{
 		$phpstanPharIoVersions = $this->getAnalyzedPhpVersions($scope);
 		if ($phpstanPharIoVersions === []) {
diff --git a/src/Rules/PHPUnit/ClassAttributeRequiresPhpVersionRule.php b/src/Rules/PHPUnit/ClassAttributeRequiresPhpVersionRule.php
index 74c1f43..a9e68ff 100644
--- a/src/Rules/PHPUnit/ClassAttributeRequiresPhpVersionRule.php
+++ b/src/Rules/PHPUnit/ClassAttributeRequiresPhpVersionRule.php
@@ -7,6 +7,7 @@
 use PHPStan\Node\InClassNode;
 use PHPStan\Rules\Rule;
 use PHPUnit\Framework\TestCase;
+use function array_merge;
 
 /**
  * @implements Rule<InClassNode>
@@ -35,8 +36,11 @@ public function processNode(Node $node, Scope $scope): array
 			return [];
 		}
 
-		return $this->attributeVersionRequirementHelper->checkRequiresPhpVersion(
-			$classReflection->getNativeReflection()->getBetterReflection()->getAttributesByName('PHPUnit\Framework\Attributes\RequiresPhp'),
+		return $this->attributeVersionRequirementHelper->checkVersionRequirement(
+			array_merge(
+				$classReflection->getNativeReflection()->getBetterReflection()->getAttributesByName('PHPUnit\Framework\Attributes\RequiresPhp'),
+				$classReflection->getNativeReflection()->getBetterReflection()->getAttributesByName('PHPUnit\Framework\Attributes\RequiresPhpunit'),
+			),
 			$scope,
 		);
 	}
diff --git a/tests/Rules/PHPUnit/AttributeRequiresPhpVersionRuleTest.php b/tests/Rules/PHPUnit/AttributeRequiresPhpVersionRuleTest.php
index 3dd09f8..40d0abd 100644
--- a/tests/Rules/PHPUnit/AttributeRequiresPhpVersionRuleTest.php
+++ b/tests/Rules/PHPUnit/AttributeRequiresPhpVersionRuleTest.php
@@ -170,6 +170,21 @@ public function testWarnAboutIncompleteVersion(): void
 		]);
 	}
 
+	public function testWarnAboutIncompletePhpunitVersion(): void
+	{
+		$this->phpunitMajorVersion = 12;
+		$this->phpunitMinorVersion = 5;
+		$this->deprecationRulesInstalled = false;
+		$this->warnAboutIncompleteVersion = true;
+
+		$this->analyse([__DIR__ . '/data/requires-phpunit-version.php'], [
+			[
+				'Version requirement is incomplete.',
+				12,
+			],
+		]);
+	}
+
 	protected function getRule(): Rule
 	{
 		$phpunitVersion = new PHPUnitVersion($this->phpunitMajorVersion, $this->phpunitMinorVersion);
diff --git a/tests/Rules/PHPUnit/ClassAttributeRequiresPhpVersionRuleTest.php b/tests/Rules/PHPUnit/ClassAttributeRequiresPhpVersionRuleTest.php
index 113187f..31814c0 100644
--- a/tests/Rules/PHPUnit/ClassAttributeRequiresPhpVersionRuleTest.php
+++ b/tests/Rules/PHPUnit/ClassAttributeRequiresPhpVersionRuleTest.php
@@ -38,6 +38,20 @@ public function testWarnAboutIncompleteVersion(): void
 		]);
 	}
 
+	public function testWarnAboutIncompletePhpunitVersion(): void
+	{
+		$this->phpunitMajorVersion = 12;
+		$this->phpunitMinorVersion = 5;
+		$this->warnAboutIncompleteVersion = true;
+
+		$this->analyse([__DIR__ . '/data/requires-phpunit-version.php'], [
+			[
+				'Version requirement is incomplete.',
+				18,
+			],
+		]);
+	}
+
 	protected function getRule(): Rule
 	{
 		$phpunitVersion = new PHPUnitVersion($this->phpunitMajorVersion, $this->phpunitMinorVersion);
diff --git a/tests/Rules/PHPUnit/data/requires-phpunit-version.php b/tests/Rules/PHPUnit/data/requires-phpunit-version.php
new file mode 100644
index 0000000..e40f2b5
--- /dev/null
+++ b/tests/Rules/PHPUnit/data/requires-phpunit-version.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace RequiresPhpunitVersion;
+
+use PHPUnit\Framework\Attributes\DataProvider;
+use PHPUnit\Framework\Attributes\Test;
+use PHPUnit\Framework\TestCase;
+use PHPUnit\Framework\Attributes\RequiresPhpunit;
+
+class TwoDigitVersionA extends TestCase
+{
+	#[RequiresPhpunit('8.0')]
+	public function testFoo(): void {
+
+	}
+}
+
+#[RequiresPhpunit('>=8.0')]
+class TwoDigitVersionB extends TestCase
+{
+	public function testBar(): void {
+
+	}
+}
+
+class CorrectRequirement extends TestCase
+{
+	#[RequiresPhpunit('>=8.0.0')]
+	public function testBar(): void {
+
+	}
+}
+
+#[RequiresPhpunit('>=8.0.0')]
+class CorrectClassRequirement extends TestCase
+{
+	public function testBar(): void {
+
+	}
+}