diff --git a/ContributionScores.php b/ContributionScores.php
index 508e4d6..8bc5c20 100644
--- a/ContributionScores.php
+++ b/ContributionScores.php
@@ -59,7 +59,7 @@ function efContributionScores_Render( &$parser, $usertext, $metric = 'score' ) {
 	}
 
 	$user = User::newFromName( $usertext );
-	$dbr = wfGetDB( DB_SLAVE );
+	$dbr = wfGetDB( DB_REPLICA );
 
 	if ( $user instanceof User && $user->isLoggedIn() ) {
 		global $wgLang;
diff --git a/ContributionScores_body.php b/ContributionScores_body.php
index aba2370..1fe0ae0 100644
--- a/ContributionScores_body.php
+++ b/ContributionScores_body.php
@@ -32,7 +32,7 @@ class ContributionScores extends IncludableSpecialPage {
 
 		$opts = explode( ',', strtolower( $options ) );
 
-		$dbr = wfGetDB( DB_SLAVE );
+		$dbr = wfGetDB( DB_REPLICA );
 
 		$userTable = $dbr->tableName( 'user' );
 		$userGroupTable = $dbr->tableName( 'user_groups' );
diff --git a/composer.json b/composer.json
index 7c63cad..6394fcf 100644
--- a/composer.json
+++ b/composer.json
@@ -1,7 +1,7 @@
 {
 	"require-dev": {
 		"jakub-onderka/php-parallel-lint": "0.9.2",
-		"mediawiki/mediawiki-codesniffer": "0.12.0",
+		"mediawiki/mediawiki-codesniffer": "13.0.0",
 		"jakub-onderka/php-console-highlighter": "0.3.2"
 	},
 	"scripts": {