diff --git a/conf.py b/conf.py
index 399e286..5ee9872 100644
--- a/conf.py
+++ b/conf.py
@@ -123,6 +123,7 @@
 
 # Custom javascript files
 html_js_files = [
+    "https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js",
     "https://cdnjs.cloudflare.com/ajax/libs/jquery-dropdown/2.0.3/jquery.dropdown.min.js",
     "js/external_links.js"
 ]