diff --git a/lib/constant.js b/lib/constant.js
index 8e724e8..1d4c595 100644
--- a/lib/constant.js
+++ b/lib/constant.js
@@ -10,5 +10,7 @@ module.exports = {
     workers: 3, // async concurrent workers to scan
     schedule: '5,11,17,23', // UTC hours to publish bot followers federated stats
     filterdomains: ['activitypub-troll.cf'], // domains filtered to scan
-    initialscan: 'mastodon.social' // initial federated domain to scan
+    initialscan: 'mastodon.social', // initial federated domain to scan
+    timeout: 3000, // Timeout of each scan request
+    abort_timeout: 4000 // Timeout of abort scan request
 }
diff --git a/lib/fediblock.js b/lib/fediblock.js
index a9a4661..71bd9fe 100644
--- a/lib/fediblock.js
+++ b/lib/fediblock.js
@@ -3,7 +3,6 @@ process.env.NODE_TLS_REJECT_UNAUTHORIZED = 0
 module.exports = async (client, apex, app) => {
 	const util = require('./util')(apex),
 		constant = require('./constant'),
-		https = require('https'),
 		schedule = require('node-schedule'),
 		workers = constant.workers,
 		getAccount = api => {
@@ -22,15 +21,12 @@ module.exports = async (client, apex, app) => {
 			const ac = new AbortController()
 			setTimeout(() => {
 				ac.abort()
-			}, 5000)
+			}, constant.abort_timeout)
 			const response = await fetch(uri, {
 				headers: { 'User-Agent': constant.agent },
-				agent: new https.Agent({
-					keepAlive: false
-				}),
 				signal: ac.signal,
 				keepalive: false,
-				timeout: 3000
+				timeout: constant.timeout
 			}),
 				json = await response.json()
 			// setImmediate(() => { ac.abort() })