diff --git a/docs/grid-system.html b/docs/grid-system.html
index d9449efb0..c76ee8c6e 100644
--- a/docs/grid-system.html
+++ b/docs/grid-system.html
@@ -74,7 +74,8 @@
 }
 </code></pre>
 <h3 id="for-older-browsers">For Older Browsers</h3>
-<p>Support for CSS Grid Layouts is <a href="http://caniuse.com/css-grid">decent</a>, but if you have an obligation to support Internet Explorer or Edge &lt; 16, consider using the <a href="http://flexboxgrid.com/">Flexbox Grid</a> in combination with Shoelace.</p>
+<p>Support for CSS Grid Layouts is <a href="http://caniuse.com/css-grid">decent</a>, but if you have an obligation to support Internet Explorer or Edge &lt; 16, consider using the <a href="https://evgenyrodionov.github.io/flexboxgrid2/">Flexbox Grid</a> in combination with Shoelace.</p>
+<p>You can use it as-is or include the source files and customize it with CSS variables in your build process.</p>
 
     </div>
   </main>
diff --git a/source/docs/grid-system.md b/source/docs/grid-system.md
index 5ae433266..682b93a70 100644
--- a/source/docs/grid-system.md
+++ b/source/docs/grid-system.md
@@ -43,4 +43,6 @@ You can use media queries to make grids responsive. This is how we make the nav
 
 ### For Older Browsers
 
-Support for CSS Grid Layouts is [decent](http://caniuse.com/css-grid), but if you have an obligation to support Internet Explorer or Edge < 16, consider using the [Flexbox Grid](http://flexboxgrid.com/) in combination with Shoelace.
+Support for CSS Grid Layouts is [decent](http://caniuse.com/css-grid), but if you have an obligation to support Internet Explorer or Edge < 16, consider using the [Flexbox Grid](https://evgenyrodionov.github.io/flexboxgrid2/) in combination with Shoelace.
+
+You can use it as-is or include the source files and customize it with CSS variables in your build process.