diff --git a/storage/sql/sql.go b/storage/sql/sql.go
index 2ddccab7..7f20cf9d 100644
--- a/storage/sql/sql.go
+++ b/storage/sql/sql.go
@@ -71,7 +71,7 @@ var (
 
 				err = tx.Commit()
 				if err != nil {
-					if pqErr, ok := err.(*pq.Error); ok && pqErr.Code == "40001" {
+					if pqErr, ok := err.(*pq.Error); ok && pqErr.Code.Name() == "serialization_failure" {
 						// serialization error; retry
 						continue
 					}