diff --git a/Gemfile b/Gemfile
index 38d20e731..b14096e7b 100644
--- a/Gemfile
+++ b/Gemfile
@@ -2,3 +2,4 @@ source 'https://rubygems.org'
 gem 'github-pages', group: :jekyll_plugins
 gem "jekyll", "~> 3.7"
 gem 'jekyll-sitemap'
+gem 'jekyll-toc'
diff --git a/Gemfile.lock b/Gemfile.lock
index be52fcb94..ffcb105aa 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -190,6 +190,9 @@ GEM
       jekyll-seo-tag (~> 2.0)
     jekyll-titles-from-headings (0.5.3)
       jekyll (>= 3.3, < 5.0)
+    jekyll-toc (0.18.0)
+      jekyll (>= 3.9)
+      nokogiri (~> 1.12)
     jekyll-watch (2.2.1)
       listen (~> 3.0)
     jemoji (0.12.0)
@@ -262,6 +265,7 @@ DEPENDENCIES
   github-pages
   jekyll (~> 3.7)
   jekyll-sitemap
+  jekyll-toc
 
 BUNDLED WITH
    1.17.3
diff --git a/docs/_config.yml b/docs/_config.yml
index 0cb2ff8ef..3c7284b9d 100644
--- a/docs/_config.yml
+++ b/docs/_config.yml
@@ -17,6 +17,7 @@ plugins:
   - jekyll-feed
   - jekyll-redirect-from
   - jekyll-sitemap
+  - jekyll-toc
 keep_files:
   - assets
   - releases
diff --git a/docs/_howto/typescript-swc.md b/docs/_howto/typescript-swc.md
index 316d8a54d..7aba01590 100644
--- a/docs/_howto/typescript-swc.md
+++ b/docs/_howto/typescript-swc.md
@@ -1,6 +1,7 @@
 ---
 layout: page
 title: "Case study: real world dependency stubbing"
+toc: true
 ---
 
 Sinon is a simple tool that only tries to do a few things and do them well: creating and injecting test doubles (spies, fakes, stubs) into objects. Unfortunately, in todays world of build pipelines, complex tooling, transpilers and different module systems, doing the simple thing quickly becomes difficult.
diff --git a/docs/_layouts/page.html b/docs/_layouts/page.html
index 8c214d5fb..df88d9035 100644
--- a/docs/_layouts/page.html
+++ b/docs/_layouts/page.html
@@ -21,7 +21,7 @@ <h1 class="post-title">{{ page.title }}</h1>
             <div>{% include carbonads.html %}</div>
         {% endif %}
 
-        {{ content }}
+        {{ content | toc }}
     </div>
 
 </article>