diff --git a/.phpcs.xml b/.phpcs.xml
index cd9ece95..8bd91628 100644
--- a/.phpcs.xml
+++ b/.phpcs.xml
@@ -7,6 +7,6 @@
 		<exclude name="MediaWiki.WhiteSpace.SpaceBeforeSingleLineComment.NewLineComment" />
 	</rule>
 	<file>.</file>
-	<arg name="extensions" value="php,inc" />
+	<arg name="extensions" value="php" />
 	<arg name="encoding" value="UTF-8" />
 </ruleset>
diff --git a/composer.json b/composer.json
index a87a17a4..783460ea 100644
--- a/composer.json
+++ b/composer.json
@@ -1,6 +1,6 @@
 {
 	"require-dev": {
-		"mediawiki/mediawiki-codesniffer": "31.0.0",
+		"mediawiki/mediawiki-codesniffer": "33.0.0",
 		"mediawiki/mediawiki-phan-config": "0.10.3",
 		"mediawiki/minus-x": "1.1.0",
 		"php-parallel-lint/php-console-highlighter": "0.5.0",
diff --git a/includes/SpecialThanks.php b/includes/SpecialThanks.php
index 4b8e9c3a..4ee8337f 100644
--- a/includes/SpecialThanks.php
+++ b/includes/SpecialThanks.php
@@ -4,20 +4,20 @@ class SpecialThanks extends FormSpecialPage {
 
 	/**
 	 * API result
-	 * @var array $result
+	 * @var array
 	 */
 	protected $result;
 
 	/**
 	 * 'rev' for revision, 'log' for log entry, or 'flow' for Flow comment,
 	 * null if no ID is specified
-	 * @var string|null $type
+	 * @var string|null
 	 */
 	protected $type;
 
 	/**
 	 * Revision or Log ID ('0' = invalid) or Flow UUID
-	 * @var string $id
+	 * @var string
 	 */
 	protected $id;