diff --git a/docs/components.html b/docs/components.html
index 013bf2ca4d..42de78cd64 100644
--- a/docs/components.html
+++ b/docs/components.html
@@ -1742,6 +1742,7 @@
       <ul>
         <li><code>.progress-info</code></li>
         <li><code>.progress-success</code></li>
+        <li><code>.progress-warning</code></li>
         <li><code>.progress-danger</code></li>
       </ul>
       <p>Alternatively, you can customize the LESS files and roll your own colors and sizes.</p>
diff --git a/less/progress-bars.less b/less/progress-bars.less
index c3144e1bd7..dba698c77f 100644
--- a/less/progress-bars.less
+++ b/less/progress-bars.less
@@ -93,3 +93,11 @@
 .progress-info.progress-striped .bar {
   #gradient > .striped(#5bc0de);
 }
+
+// Warning (orange)
+.progress-warning .bar {
+  #gradient > .vertical(lighten(@orange, 15%), @orange);
+}
+.progress-warning.progress-striped .bar {
+  #gradient > .striped(lighten(@orange, 15%));
+}