diff --git a/web/index.php b/web/index.php
index a20dd7cb470203c96446d7294ef1262988b9438c..2217919e2c8d384e608686ece1d6038ee9751a2c 100644
--- a/web/index.php
+++ b/web/index.php
@@ -46,6 +46,8 @@ $data[ 'check_result' ] = htmlspecialchars($_GET[ "check_result" ] ?? null);
     <script type="text/javascript" src="https://cdn.datatables.net/1.10.22/js/jquery.dataTables.min.js"></script>
     <link rel="stylesheet" type="text/css" href="https://cdn.datatables.net/1.10.22/css/jquery.dataTables.min.css"/>
 
+    <script type="text/javascript" src="https://cdn.jsdelivr.net/npm/chart.js@4.4.0/dist/chart.umd.min.js"></script>
+
     <link rel="stylesheet" type="text/css" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/5.15.1/css/all.min.css"/>
     <link rel="stylesheet" type="text/css" href="eccs.css" />
     <link rel="stylesheet" type="text/css" href="statistics.css" />