diff --git a/Gemfile.lock b/Gemfile.lock
index 567423566..e22721467 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -109,7 +109,7 @@ GEM
       latex-decode (~> 0.0)
     binding_of_caller (0.8.0)
       debug_inspector (>= 0.0.1)
-    bolognese (1.5)
+    bolognese (1.5.1)
       activesupport (>= 4.2.5)
       benchmark_methods (~> 0.7)
       bibtex-ruby (>= 5.1.0)
diff --git a/app/models/doi.rb b/app/models/doi.rb
index c1812b13a..7b3a19859 100644
--- a/app/models/doi.rb
+++ b/app/models/doi.rb
@@ -901,12 +901,17 @@ def self.import_by_id(options={})
         type:    Doi.document_type,
         body:    dois.map { |doi| { index: { _id: doi.id, data: doi.as_indexed_json } } }
 
-      # log errors
-      errors += response['items'].map { |k, v| k.values.first['error'] }.compact.length
-      response['items'].select { |k, v| k.values.first['error'].present? }.each do |err|
-        Rails.logger.error "[Elasticsearch] " + err.inspect
+      # try to handle errors
+      response['items'].select { |k, v| k.values.first['error'].present? }.each do |item|
+        import_one(doi_id: item.dig("index", "_id").to_i)
       end
 
+      # log errors
+      # errors += response['items'].map { |k, v| k.values.first['error'] }.compact.length
+      # response['items'].select { |k, v| k.values.first['error'].present? }.each do |err|
+      #   Rails.logger.error "[Elasticsearch] " + err.inspect
+      # end
+
       count += dois.length
     end