diff --git a/master.js b/master.js
index e8bfc8e..b07ea5b 100644
--- a/master.js
+++ b/master.js
@@ -27,7 +27,7 @@ function getMethods(inst, keys) {
 }
 
 module.exports.create = function (opts) {
-  var PromiseA = opts.PromiseA || global.Promise;
+  var PromiseA = opts.PromiseA || global.Promise || require('bluebird');
   var crypto = require('crypto');
   var inst = opts.instance;
   var methods = getMethods(opts.instance, opts.methods);
diff --git a/worker.js b/worker.js
index b04fa88..bc57b53 100644
--- a/worker.js
+++ b/worker.js
@@ -5,7 +5,7 @@
 // com.daplie.ipc.result - receive results and callback id
 
 module.exports.create = function (opts) {
-  var PromiseA = opts.PromiseA || global.Promise;
+  var PromiseA = opts.PromiseA || global.Promise || require('bluebird');
   var crypto = require('crypto');
   var token = null;
   var inst = {};