diff --git a/tests/Functional/EmbeddedShortcodeHandlerTest.php b/tests/Functional/EmbeddedShortcodeHandlerTest.php
index fe1d480..0325fa4 100644
--- a/tests/Functional/EmbeddedShortcodeHandlerTest.php
+++ b/tests/Functional/EmbeddedShortcodeHandlerTest.php
@@ -41,7 +41,7 @@ public function expand_shortcodes_registered_in_different_ways(string $shortcode
         self::assertSame('test foo=bar', $this->processShortcodes("[$shortcodeName foo=bar]"));
     }
 
-    public function provideShortcodeNames(): Generator
+    public static function provideShortcodeNames(): Generator
     {
         yield 'Inline shortcode defined in bundle config' => ['test-config-inline'];
         yield 'ESI-based shortcode defined in bundle config' => ['test-config-esi'];
@@ -62,7 +62,7 @@ public function processing_with_esi_fragments(string $shortcodeName): void
         self::assertStringContainsString('processShortcodes("[$shortcodeName foo=bar]", $request));
     }
 
-    public function provideEsiShortcodes(): Generator
+    public static function provideEsiShortcodes(): Generator
     {
         yield 'ESI-based shortcode defined in bundle configuration' => ['test-config-esi'];
         yield 'ESI-based shortcode defined in service configuration' => ['test-service-esi'];