diff --git a/app/models/import.rb b/app/models/import.rb
index a7a0d806577..c78a04d0734 100644
--- a/app/models/import.rb
+++ b/app/models/import.rb
@@ -17,7 +17,7 @@
 #
 
 class Import < ApplicationRecord
-  FILE_TYPES = %w(text/plain text/csv).freeze
+  FILE_TYPES = %w(text/plain text/csv application/csv).freeze
   MODES = %i(merge overwrite).freeze
 
   self.inheritance_column = false
diff --git a/config/initializers/paperclip.rb b/config/initializers/paperclip.rb
index 0dd7f8cf8ba..ebb009065bd 100644
--- a/config/initializers/paperclip.rb
+++ b/config/initializers/paperclip.rb
@@ -111,3 +111,5 @@ else
     url: ENV.fetch('PAPERCLIP_ROOT_URL', '/system') + '/:prefix_url:class/:attachment/:id_partition/:style/:filename',
   )
 end
+
+Paperclip.options[:content_type_mappings] = { csv: Import::FILE_TYPES }