Index: src/wp-includes/class-wp-theme.php
===================================================================
--- src/wp-includes/class-wp-theme.php	(revision 43474)
+++ src/wp-includes/class-wp-theme.php	(working copy)
@@ -35,6 +35,8 @@
 		'Tags'        => 'Tags',
 		'TextDomain'  => 'Text Domain',
 		'DomainPath'  => 'Domain Path',
+		'Requires'    => 'Requires at least',
+		'RequiresPHP' => 'Requires PHP',
 	);
 
 	/**
@@ -791,6 +793,8 @@
 				$value = array_filter( array_map( 'trim', explode( ',', strip_tags( $value ) ) ) );
 				break;
 			case 'Version':
+			case 'Requires':
+			case 'RequiresPHP':
 				$value = strip_tags( $value );
 				break;
 		}