diff --git a/CHANGELOG.md b/CHANGELOG.md
index 729654b2..b69f4eaa 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@
 
 - Update Indonesian localized UI text strings. [#2731](https://github.com/mmistakes/minimal-mistakes/pull/2731)
 - Update remote theme documentation. [#2734](https://github.com/mmistakes/minimal-mistakes/pull/2734)
+- Update allejo/jekyll-toc to v1.1.0, skip headings without an ID. [#2752](https://github.com/mmistakes/minimal-mistakes/pull/2752)
 
 ## [4.21.0](https://github.com/mmistakes/minimal-mistakes/releases/tag/4.21.0)
 
@@ -17,7 +18,7 @@
 - Fix greedy navigation by improving reliability of remaining space for visible links. [#2664](https://github.com/mmistakes/minimal-mistakes/issues/2664)
 - Collapse white-space in `figure` helper to fix issues when used in Markdown ordered and unordered lists. [#2697](https://github.com/mmistakes/minimal-mistakes/pull/2697)
 - Fix dead link to CI services in documentation. [#2635](https://github.com/mmistakes/minimal-mistakes/issues/2635) [#2692](https://github.com/mmistakes/minimal-mistakes/pull/2692)
-- Fix a small type in documentation. [#2718](https://github.com/mmistakes/minimal-mistakes/pull/2718)
+- Fix a small typo in documentation. [#2718](https://github.com/mmistakes/minimal-mistakes/pull/2718)
 
 ### Enhancements
 
diff --git a/_includes/toc.html b/_includes/toc.html
index e6c1cb4a..8c710072 100644
--- a/_includes/toc.html
+++ b/_includes/toc.html
@@ -24,7 +24,7 @@
         OTHER DEALINGS IN THE SOFTWARE.
     {% endcomment %}
     {% comment %}
-        Version 1.0.14
+        Version 1.1.0
           https://github.com/allejo/jekyll-toc
 
         "...like all things liquid - where there's a will, and ~36 hours to spare, there's usually a/some way" ~jaybe
@@ -44,34 +44,51 @@
             * ordered       (bool)   : false  - when set to true, an ordered list will be outputted instead of an unordered list
             * item_class    (string) :   ''   - add custom class(es) for each list item; has support for '%level%' placeholder, which is the current heading level
             * submenu_class (string) :   ''   - add custom class(es) for each child group of headings; has support for '%level%' placeholder which is the current "submenu" heading level
-            * baseurl       (string) :   ''   - add a base url to the TOC links for when your TOC is on another page than the actual content
+            * base_url      (string) :   ''   - add a base url to the TOC links for when your TOC is on another page than the actual content
             * anchor_class  (string) :   ''   - add custom class(es) for each anchor element
-            * skipNoIDs     (bool)   : false  - skip headers that do not have an `id` attribute
+            * skip_no_ids   (bool)   : false  - skip headers that do not have an `id` attribute
 
         Output:
             An ordered or unordered list representing the table of contents of a markdown block. This snippet will only
             generate the table of contents and will NOT output the markdown given to it
     {% endcomment %}
 
-    {% capture my_toc %}{% endcapture %}
+    {% capture newline %}
+    {% endcapture %}
+    {% assign newline = newline | rstrip %} <!-- Remove the extra spacing but preserve the newline -->
+
+    {% capture deprecation_warnings %}{% endcapture %}
+
+    {% if include.baseurl %}
+        {% capture deprecation_warnings %}{{ deprecation_warnings }}<!-- jekyll-toc :: "baseurl" has been deprecated, use "base_url" instead -->{{ newline }}{% endcapture %}
+    {% endif %}
+
+    {% if include.skipNoIDs %}
+        {% capture deprecation_warnings %}{{ deprecation_warnings }}<!-- jekyll-toc :: "skipNoIDs" has been deprecated, use "skip_no_ids" instead -->{{ newline }}{% endcapture %}
+    {% endif %}
+
+    {% capture jekyll_toc %}{% endcapture %}
     {% assign orderedList = include.ordered | default: false %}
-    {% assign skipNoIDs = include.skipNoIDs | default: false %}
+    {% assign baseURL = include.base_url | default: include.baseurl | default: '' %}
+    {% assign skipNoIDs = include.skip_no_ids | default: include.skipNoIDs | default: false %}
     {% assign minHeader = include.h_min | default: 1 %}
     {% assign maxHeader = include.h_max | default: 6 %}
-    {% assign nodes = include.html | split: '<h' %}
-    {% assign firstHeader = true %}
-    {% assign previousLevel = 0 %}
+    {% assign nodes = include.html | strip | split: '<h' %}
 
-    {% capture listModifier %}{% if orderedList %}1.{% else %}-{% endif %}{% endcapture %}
+    {% assign firstHeader = true %}
+    {% assign currLevel = 0 %}
+    {% assign lastLevel = 0 %}
+
+    {% capture listModifier %}{% if orderedList %}ol{% else %}ul{% endif %}{% endcapture %}
 
     {% for node in nodes %}
         {% if node == "" %}
             {% continue %}
         {% endif %}
 
-        {% assign headerLevel = node | replace: '"', '' | slice: 0, 1 | times: 1 %}
+        {% assign currLevel = node | replace: '"', '' | slice: 0, 1 | times: 1 %}
 
-        {% if headerLevel < minHeader or headerLevel > maxHeader %}
+        {% if currLevel < minHeader or currLevel > maxHeader %}
             {% continue %}
         {% endif %}
 
@@ -79,92 +96,87 @@
 
         {% assign _idWorkspace = _workspace[0] | split: 'id="' %}
         {% assign _idWorkspace = _idWorkspace[1] | split: '"' %}
-        {% assign html_id = _idWorkspace[0] %}
+        {% assign htmlID = _idWorkspace[0] %}
 
         {% assign _classWorkspace = _workspace[0] | split: 'class="' %}
         {% assign _classWorkspace = _classWorkspace[1] | split: '"' %}
-        {% assign html_class = _classWorkspace[0] %}
+        {% assign htmlClass = _classWorkspace[0] %}
 
-        {% if html_class contains "no_toc" %}
+        {% if htmlClass contains "no_toc" %}
             {% continue %}
         {% endif %}
 
         {% if firstHeader %}
-            {% assign firstHeader = false %}
-            {% assign minHeader = headerLevel %}
+            {% assign minHeader = currLevel %}
         {% endif %}
 
         {% capture _hAttrToStrip %}{{ _workspace[0] | split: '>' | first }}>{% endcapture %}
         {% assign header = _workspace[0] | replace: _hAttrToStrip, '' %}
 
-        {% assign indentAmount = headerLevel | minus: minHeader %}
-        {% assign space = '' %}
-        {% for i in (1..indentAmount) %}
-            {% assign space = space | prepend: '    ' %}
-        {% endfor %}
-
         {% if include.item_class and include.item_class != blank %}
-            {% capture listItemClass %}{:.{{ include.item_class | replace: '%level%', headerLevel }}}{% endcapture %}
+            {% capture listItemClass %} class="{{ include.item_class | replace: '%level%', currLevel | split: '.' | join: ' ' }}"{% endcapture %}
         {% endif %}
 
-        {% capture anchor_body %}{% if include.sanitize %}{{ header | strip_html }}{% else %}{{ header }}{% endif %}{% endcapture %}
-        {% capture anchor_body %}{{ anchor_body | replace: "|", "\|" }}{% endcapture %}
+        {% if include.submenu_class and include.submenu_class != blank %}
+            {% assign subMenuLevel = currLevel | minus: 1 %}
+            {% capture subMenuClass %} class="{{ include.submenu_class | replace: '%level%', subMenuLevel | split: '.' | join: ' ' }}"{% endcapture %}
+        {% endif %}
 
-        {% if html_id %}
-            {% capture list_item %}[{{ anchor_body }}]({% if include.baseurl %}{{ include.baseurl }}{% endif %}#{{ html_id }}){% endcapture %}
+        {% capture anchorBody %}{% if include.sanitize %}{{ header | strip_html }}{% else %}{{ header }}{% endif %}{% endcapture %}
+
+        {% if htmlID %}
+            {% capture anchorAttributes %} href="{% if baseURL %}{{ baseURL }}{% endif %}#{{ htmlID }}"{% endcapture %}
+
+            {% if include.anchor_class %}
+                {% capture anchorAttributes %}{{ anchorAttributes }} class="{{ include.anchor_class | split: '.' | join: ' ' }}"{% endcapture %}
+            {% endif %}
+
+            {% capture listItem %}<a{{ anchorAttributes }}>{{ anchorBody }}</a>{% endcapture %}
         {% elsif skipNoIDs == true %}
             {% continue %}
         {% else %}
-            {% capture list_item %}{{ anchor_body }}{% endcapture %}
+            {% capture listItem %}{{ anchorBody }}{% endcapture %}
         {% endif %}
 
-        <!--
-        If we have a submenu class and we're unindenting, then we need to add a "closing" class to this group of bullet
-        points
-        -->
-        {% if include.submenu_class and previousLevel > indentAmount %}
-            <!--
-            `space` is the current indentation, so we if want to close off the previous grouping, we need to add one
-            more level of indentation 
-            -->
-            {% assign submenuIndentation = space | prepend: '    ' %}
+        {% if currLevel > lastLevel %}
+            {% capture jekyll_toc %}{{ jekyll_toc }}<{{ listModifier }}{{ subMenuClass }}>{% endcapture %}
+        {% elsif currLevel < lastLevel %}
+            {% assign repeatCount = lastLevel | minus: currLevel %}
 
-            {% capture my_toc %}{{ my_toc }}
-{{ submenuIndentation }}{:.{{ include.submenu_class | replace: '%level%', previousLevel }}}{% endcapture %}
-        {% endif %}
-
-        {% capture my_toc %}{{ my_toc }}
-{{ space }}{{ listModifier }} {{ listItemClass }} {{ list_item }}{% if include.anchor_class %}{:.{{ include.anchor_class }}}{% endif %}{% endcapture %}
-
-        {% assign previousLevel = indentAmount %}
-    {% endfor %}
-
-    {% if include.class and include.class != blank %}
-        {% capture my_toc %}{:.{{ include.class }}}
-{{ my_toc | lstrip }}{% endcapture %}
-    {% endif %}
-
-    {% if include.id %}
-        {% capture my_toc %}{: #{{ include.id }}}
-{{ my_toc | lstrip }}{% endcapture %}
-    {% endif %}
-
-    <!--
-    If we have a submenu class, we need to close off all the remaining list item groups so that submenu classes are
-    applied correctly to them
-    -->
-    {% if include.submenu_class != blank %}
-        <!-- The last level of indentation that we were at, we need to work backwards from there closing each group -->
-        {% for i in (1..previousLevel) %}
-            {% assign lvl = previousLevel | plus: 1 | minus: i %} <!-- Invert the indent level based on `i` -->
-            {% assign closingSpace = '' %}
-
-            {% for i in (1..lvl) %}
-                {% assign closingSpace = closingSpace | prepend: '    ' %}
+            {% for i in (1..repeatCount) %}
+                {% capture jekyll_toc %}{{ jekyll_toc }}</li></{{ listModifier }}>{% endcapture %}
             {% endfor %}
 
-            {% capture my_toc %}{{ my_toc }}
-{{ closingSpace }}{:.{{ include.submenu_class | replace: '%level%', lvl }}}{% endcapture %}
-        {% endfor %}
+            {% capture jekyll_toc %}{{ jekyll_toc }}</li>{% endcapture %}
+        {% else %}
+            {% capture jekyll_toc %}{{ jekyll_toc }}</li>{% endcapture %}
+        {% endif %}
+
+        {% capture jekyll_toc %}{{ jekyll_toc }}<li{{ listItemClass }}>{{ listItem }}{% endcapture %}
+
+        {% assign lastLevel = currLevel %}
+        {% assign firstHeader = false %}
+    {% endfor %}
+
+    {% assign repeatCount = minHeader | minus: 1 %}
+    {% assign repeatCount = lastLevel | minus: repeatCount %}
+    {% for i in (1..repeatCount) %}
+        {% capture jekyll_toc %}{{ jekyll_toc }}</li></{{ listModifier }}>{% endcapture %}
+    {% endfor %}
+
+    {% if jekyll_toc != '' %}
+        {% assign rootAttributes = '' %}
+        {% if include.class and include.class != blank %}
+            {% capture rootAttributes %} class="{{ include.class | split: '.' | join: ' ' }}"{% endcapture %}
+        {% endif %}
+
+        {% if include.id and include.id != blank %}
+            {% capture rootAttributes %}{{ rootAttributes }} id="{{ include.id }}"{% endcapture %}
+        {% endif %}
+
+        {% if rootAttributes %}
+            {% assign nodes = jekyll_toc | split: '>' %}
+            {% capture jekyll_toc %}<{{ listModifier }}{{ rootAttributes }}>{{ nodes | shift | join: '>' }}>{% endcapture %}
+        {% endif %}
     {% endif %}
-{% endcapture %}{% assign tocWorkspace = '' %}{{ my_toc | markdownify | strip }}
+{% endcapture %}{% assign tocWorkspace = '' %}{{ deprecation_warnings }}{{ jekyll_toc }}
diff --git a/_layouts/single.html b/_layouts/single.html
index 71cb4e83..d74002b7 100644
--- a/_layouts/single.html
+++ b/_layouts/single.html
@@ -36,7 +36,7 @@ layout: default
           <aside class="sidebar__right {% if page.toc_sticky %}sticky{% endif %}">
             <nav class="toc">
               <header><h4 class="nav__title"><i class="fas fa-{{ page.toc_icon | default: 'file-alt' }}"></i> {{ page.toc_label | default: site.data.ui-text[site.locale].toc_label | default: "On this page" }}</h4></header>
-              {% include toc.html sanitize=true html=content h_min=1 h_max=6 class="toc__menu" %}
+              {% include toc.html sanitize=true html=content h_min=1 h_max=6 class="toc__menu" skip_no_ids=true %}
             </nav>
           </aside>
         {% endif %}
diff --git a/docs/_docs/14-helpers.md b/docs/_docs/14-helpers.md
index c80b2858..59ac0171 100644
--- a/docs/_docs/14-helpers.md
+++ b/docs/_docs/14-helpers.md
@@ -249,7 +249,7 @@ To embed the following Bilibili video at url `https://www.bilibili.com/video/BV1
 {% raw %}{% include video id="BV1E7411e7hC" provider="bilibili" %}{% endraw %}
 ```
 
-If you want to enable danmaku (弹幕) for the embedded video, which is disabled by default, you can supply an additional parameter `danmaku="1"` as shown below: 
+If you want to enable danmaku (弹幕) for the embedded video, which is disabled by default, you can supply an additional parameter `danmaku="1"` as shown below:
 
 ```liquid
 {% raw %}{% include video id="BV1E7411e7hC" provider="bilibili" danmaku="1" %}{% endraw %}
diff --git a/docs/_docs/18-history.md b/docs/_docs/18-history.md
index f0520d51..2e1791ce 100644
--- a/docs/_docs/18-history.md
+++ b/docs/_docs/18-history.md
@@ -20,6 +20,7 @@ toc: false
 
 - Update Indonesian localized UI text strings. [#2731](https://github.com/mmistakes/minimal-mistakes/pull/2731)]
 - Update remote theme documentation. [#2734](https://github.com/mmistakes/minimal-mistakes/pull/2734)
+- Update allejo/jekyll-toc to v1.1.0, skip headings without an ID. [#2752](https://github.com/mmistakes/minimal-mistakes/pull/2752)
 
 ## [4.21.0](https://github.com/mmistakes/minimal-mistakes/releases/tag/4.21.0)
 
@@ -28,7 +29,7 @@ toc: false
 - Fix greedy navigation by improving reliability of remaining space for visible links. [#2664](https://github.com/mmistakes/minimal-mistakes/issues/2664)
 - Collapse white-space in `figure` helper to fix issues when used in Markdown ordered and unordered lists. [#2697](https://github.com/mmistakes/minimal-mistakes/pull/2697)
 - Fix dead link to CI services in documentation. [#2635](https://github.com/mmistakes/minimal-mistakes/issues/2635) [#2692](https://github.com/mmistakes/minimal-mistakes/pull/2692)
-- Fix a small type in documentation. [#2718](https://github.com/mmistakes/minimal-mistakes/pull/2718)
+- Fix a small typo in documentation. [#2718](https://github.com/mmistakes/minimal-mistakes/pull/2718)
 
 ### Enhancements