diff --git a/config/config.exs b/config/config.exs
index 8f706e0..30cb587 100644
--- a/config/config.exs
+++ b/config/config.exs
@@ -22,6 +22,11 @@ config :logger, :console,
   format: "$time $metadata[$level] $message\n",
   metadata: [:request_id]
 
+# Configure authentication provider
+config :chess, Chess.Auth.Guardian,
+  issuer: "chess",
+  secret_key: System.get_env("GUARDIAN_SECRET_KEY")
+
 # Import environment specific config. This must remain at the bottom
 # of this file so it overrides the configuration defined above.
 import_config "#{Mix.env}.exs"