diff --git a/config/test.exs b/config/test.exs
index 5e1ba527..de9e9e07 100644
--- a/config/test.exs
+++ b/config/test.exs
@@ -11,7 +11,7 @@ config :animina, Animina.Repo,
   hostname: "localhost",
   database: "animina_test#{System.get_env("MIX_TEST_PARTITION")}",
   pool: Ecto.Adapters.SQL.Sandbox,
-  pool_size: 10
+  pool_size: 20
 
 # We don't run a server during test. If one is required,
 # you can enable the server option below.