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+++ b/elixir-phoenix/README.md
@@ -1,6 +1,6 @@
 # Elixir Phoenix Configuration 
 
-- Set `Build Pack` to `elixir`
+- Set `Build Pack` to `nixpacks`
 - Set `MIX_ENV` to `prod`
 - Set `SECRET_KEY_BASE` to a random string (https://hexdocs.pm/phoenix/deployment.html#handling-of-your-application-secrets)
 - Set `DATABASE_URL` to your database connection string