--- a/heuristics/valueHeuristics.php
+++ b/heuristics/valueHeuristics.php
@@ -49,8 +49,8 @@
 	global $agencyTransactions;
 	if (!$agencyTransactions[$agencyName]) {
 		$query = 'select count(*) from contractnotice where agencyName = "' . $agencyName . '"';
-		$result = mysql_query($query);
-		$r = mysql_fetch_array($result, MYSQL_BOTH);
+    $result = $conn->query($query);
+    $r = $result->fetch(PDO::FETCH_BOTH);
 		$agencyTransactions[$agencyName] = $r[0];
 	}
 	return $agencyTransactions[$agencyName];