diff --git a/server.lisp b/server.lisp
index df23d75..2577266 100644
--- a/server.lisp
+++ b/server.lisp
@@ -107,7 +107,8 @@
                 route-function)
         (funcall route-function env)))
     :port 5000
-    :address "0.0.0.0"))
+    :address "0.0.0.0"
+    :worker-num 4))
  :name "webserver")