diff --git a/docs/_includes/css/less.html b/docs/_includes/css/less.html
index 50ee41d6a2..be05f17a9b 100644
--- a/docs/_includes/css/less.html
+++ b/docs/_includes/css/less.html
@@ -161,7 +161,7 @@ a {
 
 
   <h3 id="less-mixins-box-sizing">Box-sizing</h3>
-  <p>Reset your components' box model with a single mixin. For context, see this <a href="https://developer.mozilla.org/en-US/docs/CSS/box-sizing" rel="noopener" target="_blank">helpful article from Mozilla</a>.</p>
+  <p>Reset your components' box model with a single mixin. For context, see this <a href="https://developer.mozilla.org/en-US/docs/Web/CSS/box-sizing" rel="noopener" target="_blank">helpful article from Mozilla</a>.</p>
   <p>The mixin is <strong>deprecated</strong> as of v3.2.0, with the introduction of Autoprefixer. To preserve backwards-compatibility, Bootstrap will continue to use the mixin internally until Bootstrap v4.</p>
 {% highlight scss %}
 .box-sizing(@box-model) {
diff --git a/docs/_includes/getting-started/grunt.html b/docs/_includes/getting-started/grunt.html
index 09438715f7..2484421896 100644
--- a/docs/_includes/getting-started/grunt.html
+++ b/docs/_includes/getting-started/grunt.html
@@ -22,7 +22,7 @@
   <p>Watches the Less source files and automatically recompiles them to CSS whenever you save a change.</p>
 
   <h3><code>grunt test</code> (Run tests)</h3>
-  <p>Runs <a href="http://jshint.com/">JSHint</a> and runs the <a href="https://qunitjs.com/">QUnit</a> tests in real browsers thanks to <a href="https://karma-runner.github.io/2.0/index.html">Karma</a>.</p>
+  <p>Runs <a href="https://jshint.com/">JSHint</a> and runs the <a href="https://qunitjs.com/">QUnit</a> tests in real browsers thanks to <a href="https://karma-runner.github.io/2.0/index.html">Karma</a>.</p>
 
   <h3><code>grunt docs</code> (Build &amp; test the docs assets)</h3>
   <p>Builds and tests CSS, JavaScript, and other assets which are used when running the documentation locally via <code>bundle exec jekyll serve</code>.</p>