diff --git a/tests/Doctrine/DBAL/Types/DateTimeImmutableMicroSecondsTypeTest.php b/tests/Doctrine/DBAL/Types/DateTimeImmutableMicroSecondsTypeTest.php
index 3bb1d08..edf7d8f 100644
--- a/tests/Doctrine/DBAL/Types/DateTimeImmutableMicroSecondsTypeTest.php
+++ b/tests/Doctrine/DBAL/Types/DateTimeImmutableMicroSecondsTypeTest.php
@@ -84,7 +84,7 @@ public function testConvertDateToPHPValue(string $datetime): void
     /**
      * @return iterable<string, array{string, string}>
     */
-    public function provideDateTimeValues(): iterable
+    public static function provideDateTimeValues(): iterable
     {
         yield 'default datetime format' => ['1985-09-01 10:11:12.123', '1985-09-01 10:11:12.123'];
         yield 'date time with 6 digit microseconds precision' => [