diff --git a/src/wp-includes/class-wp-theme-json.php b/src/wp-includes/class-wp-theme-json.php
index f5f6d1f63e..eef9715755 100644
--- a/src/wp-includes/class-wp-theme-json.php
+++ b/src/wp-includes/class-wp-theme-json.php
@@ -2423,7 +2423,7 @@ class WP_Theme_JSON {
 		$pseudo_matches = array_values(
 			array_filter(
 				$element_pseudo_allowed,
-				function( $pseudo_selector ) use ( $selector ) {
+				static function( $pseudo_selector ) use ( $selector ) {
 					return str_contains( $selector, $pseudo_selector );
 				}
 			)
diff --git a/src/wp-includes/global-styles-and-settings.php b/src/wp-includes/global-styles-and-settings.php
index 15f24c1cb4..84d775efb0 100644
--- a/src/wp-includes/global-styles-and-settings.php
+++ b/src/wp-includes/global-styles-and-settings.php
@@ -370,7 +370,7 @@ function wp_add_global_styles_for_blocks() {
 			$result = array_values(
 				array_filter(
 					$metadata['path'],
-					function ( $item ) {
+					static function ( $item ) {
 						if ( str_contains( $item, 'core/' ) ) {
 							return true;
 						}
diff --git a/tests/phpunit/tests/media.php b/tests/phpunit/tests/media.php
index ba3fe92fef..d4ddad3e97 100644
--- a/tests/phpunit/tests/media.php
+++ b/tests/phpunit/tests/media.php
@@ -4217,7 +4217,7 @@ EOF;
 		$result = null;
 		add_filter(
 			'the_content',
-			function( $content ) use ( &$result, $context ) {
+			static function( $content ) use ( &$result, $context ) {
 				$result = wp_get_loading_attr_default( $context );
 				return $content;
 			}