diff --git a/pyproject.toml b/pyproject.toml
index 056be53..6dd034b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,6 +29,7 @@ dependencies = [
   "libsass~=0.20.1",
   "sphinx_book_theme~=1.1.0",
   "beautifulsoup4",
+  "sphinxcontrib-jquery",
 ]
 
 license = { file = "LICENSE" }
diff --git a/src/quantecon_book_theme/__init__.py b/src/quantecon_book_theme/__init__.py
index 8b7944a..1b93de8 100644
--- a/src/quantecon_book_theme/__init__.py
+++ b/src/quantecon_book_theme/__init__.py
@@ -323,6 +323,7 @@ def setup(app):
     # Configuration for Juypter Book
     app.setup_extension("sphinx_book_theme")
     app.add_js_file("scripts/quantecon-book-theme.js")
+    app.setup_extension("sphinxcontrib.jquery")
 
     app.connect("html-page-context", add_hub_urls)
     app.connect("builder-inited", add_plugins_list)