diff --git a/django/contrib/admin/templates/admin/base.html b/django/contrib/admin/templates/admin/base.html
index 0a70e3636f..1167c03dfa 100644
--- a/django/contrib/admin/templates/admin/base.html
+++ b/django/contrib/admin/templates/admin/base.html
@@ -116,9 +116,9 @@
 
 <!-- SVGs -->
 <svg xmlns="http://www.w3.org/2000/svg" class="base-svgs">
-  <symbol viewBox="0 0 24 24" width="16" height="16" id="icon-auto"><path d="M0 0h24v24H0z" fill="currentColor"/><path d="M12 22C6.477 22 2 17.523 2 12S6.477 2 12 2s10 4.477 10 10-4.477 10-10 10zm0-2V4a8 8 0 1 0 0 16z"/></symbol>
-  <symbol viewBox="0 0 24 24" width="16" height="16" id="icon-moon"><path d="M0 0h24v24H0z" fill="currentColor"/><path d="M10 7a7 7 0 0 0 12 4.9v.1c0 5.523-4.477 10-10 10S2 17.523 2 12 6.477 2 12 2h.1A6.979 6.979 0 0 0 10 7zm-6 5a8 8 0 0 0 15.062 3.762A9 9 0 0 1 8.238 4.938 7.999 7.999 0 0 0 4 12z"/></symbol>
-  <symbol viewBox="0 0 24 24" width="16" height="16" id="icon-sun"><path d="M0 0h24v24H0z" fill="currentColor"/><path d="M12 18a6 6 0 1 1 0-12 6 6 0 0 1 0 12zm0-2a4 4 0 1 0 0-8 4 4 0 0 0 0 8zM11 1h2v3h-2V1zm0 19h2v3h-2v-3zM3.515 4.929l1.414-1.414L7.05 5.636 5.636 7.05 3.515 4.93zM16.95 18.364l1.414-1.414 2.121 2.121-1.414 1.414-2.121-2.121zm2.121-14.85l1.414 1.415-2.121 2.121-1.414-1.414 2.121-2.121zM5.636 16.95l1.414 1.414-2.121 2.121-1.414-1.414 2.121-2.121zM23 11v2h-3v-2h3zM4 11v2H1v-2h3z"/></symbol>
+  <symbol viewBox="0 0 24 24" width="1rem" height="1rem" id="icon-auto"><path d="M0 0h24v24H0z" fill="currentColor"/><path d="M12 22C6.477 22 2 17.523 2 12S6.477 2 12 2s10 4.477 10 10-4.477 10-10 10zm0-2V4a8 8 0 1 0 0 16z"/></symbol>
+  <symbol viewBox="0 0 24 24" width="1rem" height="1rem" id="icon-moon"><path d="M0 0h24v24H0z" fill="currentColor"/><path d="M10 7a7 7 0 0 0 12 4.9v.1c0 5.523-4.477 10-10 10S2 17.523 2 12 6.477 2 12 2h.1A6.979 6.979 0 0 0 10 7zm-6 5a8 8 0 0 0 15.062 3.762A9 9 0 0 1 8.238 4.938 7.999 7.999 0 0 0 4 12z"/></symbol>
+  <symbol viewBox="0 0 24 24" width="1rem" height="1rem" id="icon-sun"><path d="M0 0h24v24H0z" fill="currentColor"/><path d="M12 18a6 6 0 1 1 0-12 6 6 0 0 1 0 12zm0-2a4 4 0 1 0 0-8 4 4 0 0 0 0 8zM11 1h2v3h-2V1zm0 19h2v3h-2v-3zM3.515 4.929l1.414-1.414L7.05 5.636 5.636 7.05 3.515 4.93zM16.95 18.364l1.414-1.414 2.121 2.121-1.414 1.414-2.121-2.121zm2.121-14.85l1.414 1.415-2.121 2.121-1.414-1.414 2.121-2.121zM5.636 16.95l1.414 1.414-2.121 2.121-1.414-1.414 2.121-2.121zM23 11v2h-3v-2h3zM4 11v2H1v-2h3z"/></symbol>
 </svg>
 <!-- END SVGs -->
 </body>