diff --git a/tests/PHPStan/Rules/Properties/MissingReadOnlyPropertyAssignRuleTest.php b/tests/PHPStan/Rules/Properties/MissingReadOnlyPropertyAssignRuleTest.php
index 391afc01d1d..3ff238edcf4 100644
--- a/tests/PHPStan/Rules/Properties/MissingReadOnlyPropertyAssignRuleTest.php
+++ b/tests/PHPStan/Rules/Properties/MissingReadOnlyPropertyAssignRuleTest.php
@@ -17,36 +17,39 @@ class MissingReadOnlyPropertyAssignRuleTest extends RuleTestCase
 
 	protected function getRule(): Rule
 	{
-		return new MissingReadOnlyPropertyAssignRule(
-			new ConstructorsHelper([
-				'MissingReadOnlyPropertyAssign\\TestCase::setUp',
-			]),
-			new DirectReadWritePropertiesExtensionProvider([
-				new class() implements ReadWritePropertiesExtension {
+		$extensions = [];
+		if (PHP_VERSION_ID >= 80100) {
+			$extensions[] = new class() implements ReadWritePropertiesExtension {
 
-					public function isAlwaysRead(PropertyReflection $property, string $propertyName): bool
-					{
-						return $this->isEntityId($property, $propertyName);
-					}
+				public function isAlwaysRead(PropertyReflection $property, string $propertyName): bool
+				{
+					return $this->isEntityId($property, $propertyName);
+				}
 
-					public function isAlwaysWritten(PropertyReflection $property, string $propertyName): bool
-					{
-						return $this->isEntityId($property, $propertyName);
-					}
+				public function isAlwaysWritten(PropertyReflection $property, string $propertyName): bool
+				{
+					return $this->isEntityId($property, $propertyName);
+				}
 
-					public function isInitialized(PropertyReflection $property, string $propertyName): bool
-					{
-						return $this->isEntityId($property, $propertyName);
-					}
+				public function isInitialized(PropertyReflection $property, string $propertyName): bool
+				{
+					return $this->isEntityId($property, $propertyName);
+				}
 
-					private function isEntityId(PropertyReflection $property, string $propertyName): bool
-					{
-						return $property->getDeclaringClass()->getName() === 'MissingReadOnlyPropertyAssign\\Entity'
-							&& in_array($propertyName, ['id'], true);
-					}
+				private function isEntityId(PropertyReflection $property, string $propertyName): bool
+				{
+					return $property->getDeclaringClass()->getName() === 'MissingReadOnlyPropertyAssign\\Entity'
+						&& in_array($propertyName, ['id'], true);
+				}
 
-				},
+			};
+		}
+
+		return new MissingReadOnlyPropertyAssignRule(
+			new ConstructorsHelper([
+				'MissingReadOnlyPropertyAssign\\TestCase::setUp',
 			]),
+			new DirectReadWritePropertiesExtensionProvider($extensions),
 		);
 	}