diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index d8c32ae5b..606656aca 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -57,6 +57,7 @@ Changelog
  * Fix: Restored ability to use non-model fields with FieldPanel (Matt Westcott, LB (Ben Johnston))
  * Fix: Stop revision comparison view from crashing when non-model FieldPanels are in use (LB (Ben Johnston))
  * Fix: Ordering in the page explorer now respects custom `get_admin_display_title` methods when sorting <100 pages (Matt Westcott)
+ * Fix: Use index-specific Elasticsearch endpoints for bulk insertion, for compatibility with providers that lock down the root endpoint (Karl Hobley)
 
 
 2.0.2 (xx.xx.xxxx) - IN DEVELOPMENT
diff --git a/docs/releases/2.1.rst b/docs/releases/2.1.rst
index 467902333..87a962701 100644
--- a/docs/releases/2.1.rst
+++ b/docs/releases/2.1.rst
@@ -86,6 +86,7 @@ Bug fixes
  * Restored ability to use non-model fields with FieldPanel (Matt Westcott, LB (Ben Johnston))
  * Stop revision comparison view from crashing when non-model FieldPanels are in use (LB (Ben Johnston))
  * Ordering in the page explorer now respects custom ``get_admin_display_title`` methods when sorting <100 pages (Matt Westcott)
+ * Use index-specific Elasticsearch endpoints for bulk insertion, for compatibility with providers that lock down the root endpoint (Karl Hobley)
 
 
 Upgrade considerations
diff --git a/wagtail/search/backends/elasticsearch2.py b/wagtail/search/backends/elasticsearch2.py
index 3f7cddc3c..1f5e911c0 100644
--- a/wagtail/search/backends/elasticsearch2.py
+++ b/wagtail/search/backends/elasticsearch2.py
@@ -806,7 +806,6 @@ class Elasticsearch2Index:
         for item in items:
             # Create the action
             action = {
-                '_index': self.name,
                 '_type': doc_type,
                 '_id': mapping.get_document_id(item),
             }
@@ -814,7 +813,7 @@ class Elasticsearch2Index:
             actions.append(action)
 
         # Run the actions
-        bulk(self.es, actions)
+        bulk(self.es, actions, index=self.name)
 
     def delete_item(self, item):
         # Make sure the object can be indexed