diff --git a/SimpleCaptcha/SimpleCaptcha.php b/SimpleCaptcha/SimpleCaptcha.php
index c910ded9..f3b2143d 100644
--- a/SimpleCaptcha/SimpleCaptcha.php
+++ b/SimpleCaptcha/SimpleCaptcha.php
@@ -1088,7 +1088,7 @@ class SimpleCaptcha {
 	 */
 	private function loadText( $title, $section, $flags = Revision::READ_LATEST ) {
 		$rev = Revision::newFromTitle( $title, 0, $flags );
-		if ( is_null( $rev ) ) {
+		if ( $rev === null ) {
 			return "";
 		}
 
diff --git a/composer.json b/composer.json
index a4c74105..2e93039d 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,7 @@
 {
 	"require-dev": {
 		"jakub-onderka/php-parallel-lint": "1.0.0",
-		"mediawiki/mediawiki-codesniffer": "28.0.0",
+		"mediawiki/mediawiki-codesniffer": "29.0.0",
 		"jakub-onderka/php-console-highlighter": "0.3.2",
 		"mediawiki/minus-x": "0.3.2",
 		"mediawiki/mediawiki-phan-config": "0.9.0"
@@ -13,8 +13,8 @@
 			"minus-x check ."
 		],
 		"fix": [
-			"phpcbf",
-			"minus-x fix ."
+			"minus-x fix .",
+			"phpcbf"
 		]
 	},
 	"extra": {
diff --git a/includes/auth/CaptchaAuthenticationRequest.php b/includes/auth/CaptchaAuthenticationRequest.php
index d3e78544..2eaf2866 100644
--- a/includes/auth/CaptchaAuthenticationRequest.php
+++ b/includes/auth/CaptchaAuthenticationRequest.php
@@ -12,7 +12,8 @@ class CaptchaAuthenticationRequest extends AuthenticationRequest {
 	public $captchaId;
 
 	/** @var array Information about the captcha (e.g. question text; solution). Exact semantics
-	 *    differ between types. */
+	 *    differ between types.
+	 */
 	public $captchaData;
 
 	/** @var string Captcha solution submitted by the user. */