diff --git a/tests/unit/Differ/DiffCollectorTest.php b/tests/unit/Differ/DiffCollectorTest.php
index 365e6c4..9ab401c 100644
--- a/tests/unit/Differ/DiffCollectorTest.php
+++ b/tests/unit/Differ/DiffCollectorTest.php
@@ -124,7 +124,7 @@ public function getDiffFiles(string $baseCommit, string $headCommit): array
      * @param bool $includeNonAstChanged whether to include non AST-changed PhpDiffs
      * @param GitInterface $git the GitInterface instance
      */
-    #[DataProvider('getPhpDiffsAstChangedProvider')]
+    #[DataProvider('provideGetPhpDiffsAstChangedCases')]
     public function testGetPhpDiffsAstChanged(int $expectCount, bool $includeNonAstChanged, GitInterface $git, DiffFactory $diffFactory): void
     {
         $subject = $this->getSubject(git: $git, diffFactory: $diffFactory);
@@ -135,7 +135,10 @@ public function testGetPhpDiffsAstChanged(int $expectCount, bool $includeNonAstC
         $this->assertCount($expectCount, $actual);
     }
 
-    public static function getPhpDiffsAstChangedProvider(): \Generator
+    /**
+     * @return iterable<array{int, bool, GitInterface, DiffFactory}>
+     */
+    public static function provideGetPhpDiffsAstChangedCases(): iterable
     {
         $git = new class extends DummyGit {
             public function getDiffFiles(string $baseCommit, string $headCommit): array
diff --git a/tests/unit/Differ/DiffFactoryTest.php b/tests/unit/Differ/DiffFactoryTest.php
index 943e9b5..c467dd3 100644
--- a/tests/unit/Differ/DiffFactoryTest.php
+++ b/tests/unit/Differ/DiffFactoryTest.php
@@ -31,7 +31,7 @@ public function testCreateForNonPhp(): void
         $this->assertSame($status, $diff->status);
     }
 
-    #[DataProvider('createForPhpProvider')]
+    #[DataProvider('provideCreateForPhpCases')]
     public function testCreateForPhp(GitStatus $gitStatus, ?string $expectedBase, ?string $expectedHead): void
     {
         $git = new class extends DummyGit {
@@ -56,7 +56,10 @@ public function get(string $source): string
         $this->assertSame($expectedHead, $actual->head);
     }
 
-    public static function createForPhpProvider(): \Generator
+    /**
+     * @return iterable<array{GitStatus, ?string, ?string}>
+     */
+    public static function provideCreateForPhpCases(): iterable
     {
         yield 'ADDED' => [GitStatus::ADDED, null, '<?php $hash = \'commit2\'; $path = \'a.php\';'];