diff --git a/site/docs/4.1/components/collapse.md b/site/docs/4.1/components/collapse.md
index 59faa7331a..6ca6f43de0 100644
--- a/site/docs/4.1/components/collapse.md
+++ b/site/docs/4.1/components/collapse.md
@@ -77,11 +77,11 @@ Using the [card]({{ site.baseurl }}/docs/{{ site.docs_version }}/components/card
 <div class="accordion" id="accordionExample">
   <div class="card">
     <div class="card-header" id="headingOne">
-      <h5 class="mb-0">
+      <h2 class="mb-0">
         <button class="btn btn-link" type="button" data-toggle="collapse" data-target="#collapseOne" aria-expanded="true" aria-controls="collapseOne">
           Collapsible Group Item #1
         </button>
-      </h5>
+      </h2>
     </div>
 
     <div id="collapseOne" class="collapse show" aria-labelledby="headingOne" data-parent="#accordionExample">
@@ -92,11 +92,11 @@ Using the [card]({{ site.baseurl }}/docs/{{ site.docs_version }}/components/card
   </div>
   <div class="card">
     <div class="card-header" id="headingTwo">
-      <h5 class="mb-0">
+      <h2 class="mb-0">
         <button class="btn btn-link collapsed" type="button" data-toggle="collapse" data-target="#collapseTwo" aria-expanded="false" aria-controls="collapseTwo">
           Collapsible Group Item #2
         </button>
-      </h5>
+      </h2>
     </div>
     <div id="collapseTwo" class="collapse" aria-labelledby="headingTwo" data-parent="#accordionExample">
       <div class="card-body">
@@ -106,11 +106,11 @@ Using the [card]({{ site.baseurl }}/docs/{{ site.docs_version }}/components/card
   </div>
   <div class="card">
     <div class="card-header" id="headingThree">
-      <h5 class="mb-0">
+      <h2 class="mb-0">
         <button class="btn btn-link collapsed" type="button" data-toggle="collapse" data-target="#collapseThree" aria-expanded="false" aria-controls="collapseThree">
           Collapsible Group Item #3
         </button>
-      </h5>
+      </h2>
     </div>
     <div id="collapseThree" class="collapse" aria-labelledby="headingThree" data-parent="#accordionExample">
       <div class="card-body">