diff --git a/04-fibonacci/index.js b/04-fibonacci/index.js
index e4dd408..2720a04 100644
--- a/04-fibonacci/index.js
+++ b/04-fibonacci/index.js
@@ -1,10 +1,9 @@
-export function fibonacci(value) {
+export function fibonacci(value,memo = {}) {
   // implementar logica aqui
   if(value < 0) return 0;
   if(value < 2) return value;
   if(memo[value]) return memo[value];
   let result = fibonacci(value - 1, memo) + fibonacci(value - 2, memo);
   memo[value] = result;
-  console.log(memo);
   return result;
 }
\ No newline at end of file