diff --git a/src/apptask.js b/src/apptask.js
index c8ae42890..37155a3f1 100644
--- a/src/apptask.js
+++ b/src/apptask.js
@@ -71,7 +71,7 @@ async function allocateContainerIp(app) {
 
     await promiseRetry({ times: 10, interval: 0, debug }, async function () {
         const iprange = iputils.intFromIp(constants.APPS_IPv4_END) - iputils.intFromIp(constants.APPS_IPv4_START);
-        let rnd = Math.floor(Math.random() * iprange);
+        const rnd = Math.floor(Math.random() * iprange);
         const containerIp = iputils.ipFromInt(iputils.intFromIp(constants.APPS_IPv4_START) + rnd);
         await updateApp(app, { containerIp });
     });
@@ -133,7 +133,7 @@ async function deleteAppDir(app, options) {
         // remove only files. directories inside app dir are currently volumes managed by the addons
         // we cannot delete those dirs anyway because of perms
         entries.forEach(function (entry) {
-            let stat = safe.fs.statSync(path.join(resolvedAppDataDir, entry));
+            const stat = safe.fs.statSync(path.join(resolvedAppDataDir, entry));
             if (stat && !stat.isDirectory()) safe.fs.unlinkSync(path.join(resolvedAppDataDir, entry));
         });
     }
@@ -247,7 +247,7 @@ async function updateChecklist(app, newChecks) {
 
     // add new checklist items depending on sso state
     const checklist = app.checklist || {};
-    for (let k in newChecks) {
+    for (const k in newChecks) {
         if (app.checklist[k]) continue;
 
         const item = {