diff --git a/index.html b/index.html
index fcd8962a7f..8f323010bd 100644
--- a/index.html
+++ b/index.html
@@ -19,6 +19,10 @@
       content="width=device-width, initial-scale=1, shrink-to-fit=no"
     />
     <meta name="theme-color" content="#000000" />
+    <meta
+      http-equiv="Content-Security-Policy"
+      content="font-src 'self' https://sdk.openui5.org/; script-src 'self'; object-src 'self';"
+    />
     <title>Busola</title>
   </head>