diff --git a/wagtail/admin/static_src/wagtailadmin/scss/layouts/page-editor.scss b/wagtail/admin/static_src/wagtailadmin/scss/layouts/page-editor.scss
index 42dce3efe3..9aa58de006 100644
--- a/wagtail/admin/static_src/wagtailadmin/scss/layouts/page-editor.scss
+++ b/wagtail/admin/static_src/wagtailadmin/scss/layouts/page-editor.scss
@@ -151,10 +151,8 @@
         padding-left: 3em;
         opacity: 1;
 
-        .icon-help-inverse {
-            float: left;
-            margin-left: -2em;
-            margin-top: 0.3em;
+        .icon-help {
+            margin-left: -1.75em;
         }
     }
 
diff --git a/wagtail/admin/templates/wagtailadmin/block_forms/sequence.html b/wagtail/admin/templates/wagtailadmin/block_forms/sequence.html
index 3d909d45f0..53e78c6f99 100644
--- a/wagtail/admin/templates/wagtailadmin/block_forms/sequence.html
+++ b/wagtail/admin/templates/wagtailadmin/block_forms/sequence.html
@@ -13,10 +13,12 @@
 
 {% endcomment %}
 
+{% load wagtailadmin_tags  %}
+
 {% if help_text %}
     <span>
         <div class="help">
-            <span class="icon-help-inverse" aria-hidden="true"></span>
+            {% icon name="help" class_name="default" %}
             {{ help_text }}
         </div>
     </span>
diff --git a/wagtail/admin/templates/wagtailadmin/block_forms/struct.html b/wagtail/admin/templates/wagtailadmin/block_forms/struct.html
index 91e5e1b0a7..26ac360efd 100644
--- a/wagtail/admin/templates/wagtailadmin/block_forms/struct.html
+++ b/wagtail/admin/templates/wagtailadmin/block_forms/struct.html
@@ -1,8 +1,10 @@
+{% load wagtailadmin_tags  %}
+
 <div class="{{ classname }}">
     {% if help_text %}
         <span>
             <div class="help">
-                <span class="icon-help-inverse" aria-hidden="true"></span>
+                {% icon name="help" class_name="default" %}
                 {{ help_text }}
             </div>
         </span>
diff --git a/wagtail/admin/templates/wagtailadmin/edit_handlers/object_list.html b/wagtail/admin/templates/wagtailadmin/edit_handlers/object_list.html
index b002ad157c..448e590206 100644
--- a/wagtail/admin/templates/wagtailadmin/edit_handlers/object_list.html
+++ b/wagtail/admin/templates/wagtailadmin/edit_handlers/object_list.html
@@ -1,3 +1,5 @@
+{% load wagtailadmin_tags  %}
+
 <ul class="objects">
     {% for child in self.children %}
         <li class="object {{ child.classes|join:" " }}">
@@ -11,7 +13,10 @@
             <div class="object-layout">
                 {% if child.help_text %}
                 <div class="object-layout_small-part">
-                    <div class="object-help help"><span class="icon-help-inverse" aria-hidden="true"></span>{{ child.help_text }}</div>
+                    <div class="object-help help">
+                        {% icon name="help" class_name="default" %}
+                        {{ child.help_text }}
+                    </div>
                 </div>
                 {% endif %}
                 <div class="object-layout_big-part">
diff --git a/wagtail/admin/tests/test_edit_handlers.py b/wagtail/admin/tests/test_edit_handlers.py
index ffab8ccbc7..e42265ec49 100644
--- a/wagtail/admin/tests/test_edit_handlers.py
+++ b/wagtail/admin/tests/test_edit_handlers.py
@@ -388,7 +388,7 @@ class TestObjectList(TestCase):
         self.assertInHTML('<label for="id_date_from">Start date</label>', result)
 
         # result should include help text for children
-        self.assertIn('<div class="object-help help"><span class="icon-help-inverse" aria-hidden="true"></span>Not required if event is on a single day</div>', result)
+        self.assertInHTML('<div class="object-help help"> <svg class="icon icon-help default" aria-hidden="true" focusable="false"><use href="#icon-help"></use></svg> Not required if event is on a single day</div>', result)
 
         # result should contain rendered content from descendants
         self.assertIn('Abergavenny sheepdog trials</textarea>', result)
diff --git a/wagtail/core/tests/test_blocks.py b/wagtail/core/tests/test_blocks.py
index 3e392d21ac..3c7da250fc 100644
--- a/wagtail/core/tests/test_blocks.py
+++ b/wagtail/core/tests/test_blocks.py
@@ -1630,7 +1630,7 @@ class TestStructBlock(SimpleTestCase):
             'link': 'http://www.wagtail.io',
         }), prefix='mylink')
 
-        self.assertInHTML('<div class="help"><span class="icon-help-inverse" aria-hidden="true"></span> Self-promotion is encouraged</div>', html)
+        self.assertInHTML('<div class="help"> <svg class="icon icon-help default" aria-hidden="true" focusable="false"><use href="#icon-help"></use></svg>  Self-promotion is encouraged</div>', html)
 
         # check it can be overridden in the block constructor
         block = LinkBlock(help_text="Self-promotion is discouraged")
@@ -1639,7 +1639,7 @@ class TestStructBlock(SimpleTestCase):
             'link': 'http://www.wagtail.io',
         }), prefix='mylink')
 
-        self.assertInHTML('<div class="help"><span class="icon-help-inverse" aria-hidden="true"></span> Self-promotion is discouraged</div>', html)
+        self.assertInHTML('<div class="help"> <svg class="icon icon-help default" aria-hidden="true" focusable="false"><use href="#icon-help"></use></svg>  Self-promotion is discouraged</div>', html)
 
     def test_media_inheritance(self):
         class ScriptedCharBlock(blocks.CharBlock):