diff --git a/core/modules/taxonomy/taxonomy.install b/core/modules/taxonomy/taxonomy.install
index f774760690..ad46b25b82 100644
--- a/core/modules/taxonomy/taxonomy.install
+++ b/core/modules/taxonomy/taxonomy.install
@@ -196,6 +196,9 @@ function taxonomy_update_8701(&$sandbox) {
     $sandbox['last'] = 0;
     $sandbox['count'] = 0;
 
+    // Truncate table to avoid integrity constraint violation errors.
+    db_truncate('taxonomy_index');
+
     $query = db_select('node_field_data', 'n')
       ->condition('n.status', NODE_NOT_PUBLISHED);
     $sandbox['total'] = $query->countQuery()->execute()->fetchField();