diff --git a/server/config/prod.exs b/server/config/prod.exs
index 89898ec..550b0a8 100644
--- a/server/config/prod.exs
+++ b/server/config/prod.exs
@@ -16,7 +16,4 @@ config :swoosh, local: false
 # Do not print debug messages in production
 config :logger, level: :info
 
-config :ethui, Ethui.Repo,
-  default_transaction_mode: :immediate,
-  pool: Ecto.Adapters.SQL.Sandbox,
-  pool_size: System.schedulers_online() * 2
+config :ethui, Ethui.Repo, default_transaction_mode: :immediate