diff --git a/services/app/config/releases.exs b/services/app/config/releases.exs
index 62a817d4d..073d38ede 100644
--- a/services/app/config/releases.exs
+++ b/services/app/config/releases.exs
@@ -26,7 +26,7 @@ config :codebattle, Codebattle.Repo,
   password: System.get_env("CODEBATTLE_DB_PASSWORD"),
   hostname: System.get_env("CODEBATTLE_DB_HOSTNAME"),
   database: System.get_env("CODEBATTLE_DB_NAME"),
-  pool_size: 100,
+  pool_size: 10,
   log_level: :error
 
 config :codebattle, :oauth,