diff --git a/composer.json b/composer.json
index 17019b96..cdb082db 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,7 @@
 {
 	"require-dev": {
 		"jakub-onderka/php-parallel-lint": "1.0.0",
-		"mediawiki/mediawiki-codesniffer": "18.0.0",
+		"mediawiki/mediawiki-codesniffer": "19.1.0",
 		"jakub-onderka/php-console-highlighter": "0.3.2",
 		"mediawiki/minus-x": "0.3.1",
 		"mediawiki/mediawiki-phan-config": "0.2.0"
diff --git a/src/ReplaceTextUtils.php b/src/ReplaceTextUtils.php
index 796e366e..c7694011 100644
--- a/src/ReplaceTextUtils.php
+++ b/src/ReplaceTextUtils.php
@@ -25,7 +25,7 @@ class ReplaceTextUtils {
 	/**
 	 * Shim for compatibility
 	 * @param Title $title to link to
-	 * @param string $text to show
+	 * @param string|null $text to show
 	 * @return string HTML for link
 	 */
 	public static function link( Title $title, $text = null ) {