2 files changed, 4 insertions, 0 deletions
diff --git a/app/models/poll.rb b/app/models/poll.rb
index ab7236d45..da2e25e71 100644
--- a/app/models/poll.rb
+++ b/app/models/poll.rb
@@ -15,6 +15,7 @@
 #  last_fetched_at :datetime
 #  created_at      :datetime         not null
 #  updated_at      :datetime         not null
+#  lock_version    :integer          default(0), not null
 #
 
 class Poll < ApplicationRecord
diff --git a/app/models/poll_vote.rb b/app/models/poll_vote.rb
index 9ad66bbf8..ad24eb691 100644
--- a/app/models/poll_vote.rb
+++ b/app/models/poll_vote.rb
@@ -32,5 +32,8 @@ class PollVote < ApplicationRecord
   def increment_counter_cache
     poll.cached_tallies[choice] = (poll.cached_tallies[choice] || 0) + 1
     poll.save
+  rescue ActiveRecord::StaleObjectError
+    poll.reload
+    retry
   end
 end