diff --git a/src/apptask.js b/src/apptask.js
index abc7709a0..a394f5fec 100644
--- a/src/apptask.js
+++ b/src/apptask.js
@@ -50,7 +50,6 @@ var addons = require('./addons.js'),
     path = require('path'),
     paths = require('./paths.js'),
     safe = require('safetydance'),
-    semver = require('semver'),
     shell = require('./shell.js'),
     SubdomainError = require('./subdomainerror.js'),
     subdomains = require('./subdomains.js'),
@@ -78,14 +77,6 @@ function debugApp(app, args) {
     debug(prefix + ' ' + util.format.apply(util, Array.prototype.slice.call(arguments, 1)));
 }
 
-function targetBoxVersion(manifest) {
-    if ('targetBoxVersion' in manifest) return manifest.targetBoxVersion;
-
-    if ('minBoxVersion' in manifest) return manifest.minBoxVersion;
-
-    return '0.0.1';
-}
-
 // We expect conflicts to not happen despite closing the port (parallel app installs, app update does not reconfigure nginx etc)
 // https://tools.ietf.org/html/rfc6056#section-3.5 says linux uses random ephemeral port allocation
 function getFreePort(callback) {