diff --git a/0-limit-crawler/main.go b/0-limit-crawler/main.go
index bdf33fa..016148f 100644
--- a/0-limit-crawler/main.go
+++ b/0-limit-crawler/main.go
@@ -12,6 +12,7 @@ package main
 import (
 	"fmt"
 	"sync"
+	"time"
 )
 
 var mu sync.Mutex
@@ -25,6 +26,9 @@ func Crawl(url string, depth int, wg *sync.WaitGroup) {
 		return
 	}
 
+	mu.Lock()
+	time.Sleep(time.Second)
+	mu.Unlock()
 	body, urls, err := fetcher.Fetch(url)
 	if err != nil {
 		fmt.Println(err)