diff --git a/Docs/conf.py b/Docs/conf.py
index 42a88d2e6b6..f561becfe6b 100644
--- a/Docs/conf.py
+++ b/Docs/conf.py
@@ -100,7 +100,14 @@
 # https://github.com/readthedocs/sphinx-notfound-page
 notfound_context = {
     'title': 'Page Not Found',
-    'body': '''
+    'body': r'''
+<script type="text/javascript">
+  // Workaround https://github.com/readthedocs/readthedocs.org/issues/9507
+  const regex = /^https:\/\/slicer\.readthedocs\.io\/\w+\/v\d\.\d$/;
+  if (regex.test(window.location)) {
+    window.location.replace(window.location + "/");
+  }
+</script>
 <h1>Page Not Found</h1>
 <p>Sorry, we couldn't find that page.</p>
 <p>Try using the search box or go to the homepage.</p>