diff --git a/package.json b/package.json
index 46c0b4d..471e92d 100644
--- a/package.json
+++ b/package.json
@@ -12,7 +12,7 @@
     "dependencies": {
         "crypto-lib": "https://github.com/whiteout-io/crypto-lib/tarball/master",
         "imap-client": "https://github.com/whiteout-io/imap-client/tarball/master",
-        "mailreader": "https://github.com/whiteout-io/mailreader/tarball/master",
+        "mailreader": "https://github.com/whiteout-io/mailreader/tarball/dev/worker",
         "pgpmailer": "https://github.com/whiteout-io/pgpmailer/tarball/master",
         "pgpbuilder": "https://github.com/whiteout-io/pgpbuilder/tarball/master",
         "requirejs": "2.1.10"
diff --git a/src/js/app-controller.js b/src/js/app-controller.js
index 562d7b6..f03e0e2 100644
--- a/src/js/app-controller.js
+++ b/src/js/app-controller.js
@@ -337,6 +337,8 @@ define(function(require) {
         var lawnchairDao, restDao, pubkeyDao, invitationDao,
             emailDao, keychain, pgp, userStorage, pgpbuilder;
 
+        mailreader.startWorker(config.workerPath + '/../lib/mailreader-parser-worker.js');
+
         // init objects and inject dependencies
         restDao = new RestDAO();
         pubkeyDao = new PublicKeyDAO(restDao);