diff --git a/extension.json b/extension.json
index 0e7fd98..ac6e6a5 100644
--- a/extension.json
+++ b/extension.json
@@ -11,7 +11,7 @@
 	"type": "parserhook",
 	"license-name": "GFDL-1.2",
 	"requires": {
-		"MediaWiki": ">= 1.34.0"
+		"MediaWiki": ">= 1.35.3"
 	},
 	"GroupPermissions": {
 		"*": {
diff --git a/includes/AJAXPoll.php b/includes/AJAXPoll.php
index 7f0b704..4695031 100644
--- a/includes/AJAXPoll.php
+++ b/includes/AJAXPoll.php
@@ -52,7 +52,7 @@ class AJAXPoll {
 		$input = trim( strip_tags( $input ) );
 		$lines = explode( "\n", trim( $input ) );
 
-		$dbw = wfGetDB( DB_MASTER );
+		$dbw = wfGetDB( DB_PRIMARY );
 
 		/**
 		 * Register poll in the database
@@ -193,7 +193,7 @@ During the last 48 hours, $tab2[0] votes have been given.";
 			return self::buildHTML( $id, $user, $readonly, '' );
 		}
 
-		$dbw = wfGetDB( DB_MASTER );
+		$dbw = wfGetDB( DB_PRIMARY );
 
 		if ( $answer != 0 ) {
 			$answer = ++$answer;
diff --git a/maintenance/migrateOldAJAXPollUserColumnsToActor.php b/maintenance/migrateOldAJAXPollUserColumnsToActor.php
index 15c9e3e..612b8d5 100644
--- a/maintenance/migrateOldAJAXPollUserColumnsToActor.php
+++ b/maintenance/migrateOldAJAXPollUserColumnsToActor.php
@@ -45,7 +45,7 @@ class MigrateOldAJAXPollUserColumnsToActor extends LoggedUpdateMaintenance {
 	 * @return bool True to log the update as done
 	 */
 	protected function doDBUpdates() {
-		$dbw = $this->getDB( DB_MASTER );
+		$dbw = $this->getDB( DB_PRIMARY );
 
 		if ( $dbw->fieldExists( 'ajaxpoll_vote', 'poll_vote_id', __METHOD__ ) ) {
 			return true;