diff --git a/lib/dns.js b/lib/dns.js
index 5a1a0255db6cbe..82266effe908ed 100644
--- a/lib/dns.js
+++ b/lib/dns.js
@@ -134,21 +134,13 @@ function onlookupall(err, addresses) {
   }
 }
 
-function cleanDnsCache() {
+function cleanExpiredDnsCache() {
+  const currentTime = DateNow();
   for (const key in dnsCache) {
-    delete dnsCache[key];
-  }
-}
-
-function scheduleCleanup() {
-  if (cleanupTimeout) {
-    return;
+    if (currentTime - dnsCache[key].timestamp >= 1000) {
+      delete dnsCache[key];
+    }
   }
-
-  cleanupTimeout = setTimeout(() => {
-    cleanDnsCache();
-    cleanupTimeout = null;
-  }, 1000).ref();
 }
 
 function addDnsEntry(cacheKey, address, family) {
@@ -158,7 +150,7 @@ function addDnsEntry(cacheKey, address, family) {
     timestamp: DateNow(),
   };
 
-  scheduleCleanup();
+  cleanExpiredDnsCache();
 
   return dnsCache[cacheKey];
 }
@@ -175,6 +167,7 @@ function lookup(hostname, options, callback) {
   let all = false;
   let verbatim = getDefaultVerbatim();
 
+  cleanExpiredDnsCache();
 
   // Parse arguments
   if (hostname) {
@@ -248,7 +241,7 @@ function lookup(hostname, options, callback) {
   const cacheKey = `${hostname}_${family || 'default'}`;
   const cachedResult = dnsCache[cacheKey];
 
-  if (cachedResult && DateNow() - cachedResult.timestamp < 1000) {
+  if (cachedResult) {
     callback(null, cachedResult.address, cachedResult.family);
     return {};
   }