diff --git a/package.json b/package.json
index 04a2c03e..dc9bacd8 100644
--- a/package.json
+++ b/package.json
@@ -26,11 +26,11 @@
     "url": "https://github.com/joeferner/node-java.git"
   },
   "dependencies": {
-    "async": "0.9.0",
+    "async": "1.5.2",
     "find-java-home": "0.1.2",
-    "glob": "5.0.5",
-    "lodash": "3.7.0",
-    "nan": "2.0.9"
+    "glob": "7.0.3",
+    "lodash": "4.11.1",
+    "nan": "2.3.2"
   },
   "devDependencies": {
     "chalk": "1.0.0",
diff --git a/src/javaObject.cpp b/src/javaObject.cpp
index 32c876fe..97a3ec24 100644
--- a/src/javaObject.cpp
+++ b/src/javaObject.cpp
@@ -57,13 +57,15 @@
 
       v8::Local<v8::String> baseMethodName = Nan::New<v8::String>(methodNameStr.c_str()).ToLocalChecked();
 
-      v8::Local<v8::String> methodNameAsync = Nan::New<v8::String>((methodNameStr + java->AsyncSuffix()).c_str()).ToLocalChecked();
+      std::string methodNameAsyncStr = methodNameStr;
+      const char* methodNameAsync = methodNameAsyncStr.append(java->AsyncSuffix()).c_str();
       v8::Local<v8::FunctionTemplate> methodCallTemplate = Nan::New<v8::FunctionTemplate>(methodCall, baseMethodName);
-      funcTemplate->PrototypeTemplate()->Set(methodNameAsync, methodCallTemplate->GetFunction());
+      Nan::SetPrototypeTemplate(funcTemplate, methodNameAsync, methodCallTemplate);
 
-      v8::Local<v8::String> methodNameSync = Nan::New<v8::String>((methodNameStr + java->SyncSuffix()).c_str()).ToLocalChecked();
+      std::string methodNameSyncStr = methodNameStr;
+      const char* methodNameSync = methodNameSyncStr.append(java->SyncSuffix()).c_str();
       v8::Local<v8::FunctionTemplate> methodCallSyncTemplate = Nan::New<v8::FunctionTemplate>(methodCallSync, baseMethodName);
-      funcTemplate->PrototypeTemplate()->Set(methodNameSync, methodCallSyncTemplate->GetFunction());
+      Nan::SetPrototypeTemplate(funcTemplate, methodNameSync, methodCallSyncTemplate);
 
       if (java->DoPromise()) {
         v8::Local<v8::Object> recv = Nan::New<v8::Object>();
@@ -74,8 +76,10 @@
           assert(result->IsFunction());
         }
         v8::Local<v8::Function> promFunction = result.As<v8::Function>();
-        v8::Local<v8::String> methodNamePromise = Nan::New<v8::String>((methodNameStr + java->PromiseSuffix()).c_str()).ToLocalChecked();
-        funcTemplate->PrototypeTemplate()->Set(methodNamePromise, promFunction);
+        v8::Local<v8::FunctionTemplate> promFunctionTemplate = Nan::New<v8::FunctionTemplate>(methodCallPromise, promFunction);
+        std::string methodNamePromiseStr = methodNameStr;
+        const char* methodNamePromise = methodNamePromiseStr.append(java->PromiseSuffix()).c_str();
+        Nan::SetPrototypeTemplate(funcTemplate, methodNamePromise, promFunctionTemplate);
       }
     }
 
@@ -202,6 +206,21 @@ NAN_METHOD(JavaObject::methodCallSync) {
   info.GetReturnValue().Set(result);
 }
 
+NAN_METHOD(JavaObject::methodCallPromise) {
+  Nan::HandleScope scope;
+  v8::Local<v8::Function> fn = info.Data().As<v8::Function>();
+  v8::Handle<v8::Value>* argv = new v8::Handle<v8::Value>[info.Length()];
+  for (int i = 0 ; i < info.Length(); i++) {
+    argv[i] = info[i];
+  }
+  
+  v8::Local<v8::Value> result = fn->Call(info.This(), info.Length(), argv);
+  
+  delete[] argv;
+  
+  info.GetReturnValue().Set(result);
+}
+
 NAN_GETTER(JavaObject::fieldGetter) {
   Nan::HandleScope scope;
   JavaObject* self = Nan::ObjectWrap::Unwrap<JavaObject>(info.This());
@@ -317,9 +336,7 @@ NAN_INDEX_GETTER(JavaObject::indexGetter) {
   t->InstanceTemplate()->SetInternalFieldCount(1);
   t->SetClassName(Nan::New<v8::String>("NodeDynamicProxy").ToLocalChecked());
 
-  v8::Local<v8::String> methodName = Nan::New<v8::String>("unref").ToLocalChecked();
-  v8::Local<v8::FunctionTemplate> methodCallTemplate = Nan::New<v8::FunctionTemplate>(doUnref);
-  t->PrototypeTemplate()->Set(methodName, methodCallTemplate->GetFunction());
+  Nan::SetPrototypeTemplate(t, "unref", Nan::New<v8::FunctionTemplate>(doUnref));
 
   v8::Local<v8::String> fieldName = Nan::New<v8::String>("invocationHandler").ToLocalChecked();
   Nan::SetAccessor(t->InstanceTemplate(), fieldName, invocationHandlerGetter);
diff --git a/src/javaObject.h b/src/javaObject.h
index dc36fbd2..cbf49e6f 100644
--- a/src/javaObject.h
+++ b/src/javaObject.h
@@ -30,6 +30,7 @@ class JavaObject : public Nan::ObjectWrap {
 private:
   static NAN_METHOD(methodCall);
   static NAN_METHOD(methodCallSync);
+  static NAN_METHOD(methodCallPromise);
   static NAN_GETTER(fieldGetter);
   static NAN_SETTER(fieldSetter);
   static NAN_INDEX_GETTER(indexGetter);
diff --git a/testAsyncOptions/testAllThreeSuffix.js b/testAsyncOptions/testAllThreeSuffix.js
index 32f7cd94..946e6210 100644
--- a/testAsyncOptions/testAllThreeSuffix.js
+++ b/testAsyncOptions/testAllThreeSuffix.js
@@ -20,11 +20,10 @@ module.exports = {
     test.ok(arrayList);
     test.ok(java.instanceOf(arrayList, "java.util.ArrayList"));
 
-    var api = _.functions(arrayList);
-    test.ok(_.includes(api, 'addSync'), 'Expected `addSync` to be present, but it is NOT.');
-    test.ok(_.includes(api, 'addAsync'), 'Expected `addAsync` to be present, but it is NOT.');
-    test.ok(_.includes(api, 'addPromise'), 'Expected addPromise to be present, but it is NOT.');
-    test.ok(!_.includes(api, 'add'), 'Expected add to NOT be present, but it is.');
+    test.ok(!_.isUndefined(arrayList.addSync), 'Expected `addSync` to be present, but it is NOT.');
+    test.ok(!_.isUndefined(arrayList.addAsync), 'Expected `addAsync` to be present, but it is NOT.');
+    test.ok(!_.isUndefined(arrayList.addPromise), 'Expected `addPromise` to be present, but it is NOT.');
+    test.ok(_.isUndefined(arrayList.add), 'Expected `add` to NOT be present, but it is.');
     test.done();
   },
 
diff --git a/testAsyncOptions/testAsyncSuffixSyncDefault.js b/testAsyncOptions/testAsyncSuffixSyncDefault.js
index 6cc50ab3..0e4bde6a 100644
--- a/testAsyncOptions/testAsyncSuffixSyncDefault.js
+++ b/testAsyncOptions/testAsyncSuffixSyncDefault.js
@@ -41,10 +41,9 @@ module.exports = {
     test.ok(arrayList);
     test.ok(java.instanceOf(arrayList, "java.util.ArrayList"));
 
-    var api = _.functions(arrayList);
-    test.ok(_.includes(api, 'addAsync'), 'Expected `addAsync` to be present, but it is NOT.');
-    test.ok(_.includes(api, 'add'), 'Expected `add` to be present, but it is NOT.');
-    test.ok(!_.includes(api, 'addPromise'), 'Expected addPromise to NOT be present, but it is.');
+    test.ok(!_.isUndefined(arrayList.addAsync), 'Expected `addAsync` to be present, but it is NOT.');
+    test.ok(!_.isUndefined(arrayList.add), 'Expected `add` to be present, but it is NOT.');
+    test.ok(_.isUndefined(arrayList.addPromise), 'Expected `addPromise` to NOT be present, but it is.');
     test.done();
   },
 
diff --git a/testAsyncOptions/testDefacto.js b/testAsyncOptions/testDefacto.js
index 67967f4b..e94e13b6 100644
--- a/testAsyncOptions/testDefacto.js
+++ b/testAsyncOptions/testDefacto.js
@@ -49,10 +49,9 @@ module.exports = {
     test.ok(arrayList);
     test.ok(java.instanceOf(arrayList, "java.util.ArrayList"));
 
-    var api = _.functions(arrayList);
-    test.ok(_.includes(api, 'addSync'), 'Expected `addSync` to be present, but it is NOT.');
-    test.ok(_.includes(api, 'add'), 'Expected `add` to be present, but it is NOT.');
-    test.ok(!_.includes(api, 'addPromise'), 'Expected addPromise to NOT be present, but it is.');
+    test.ok(!_.isUndefined(arrayList.addSync), 'Expected `addSync` to be present, but it is NOT.');
+    test.ok(!_.isUndefined(arrayList.add), 'Expected `add` to be present, but it is NOT.');
+    test.ok(_.isUndefined(arrayList.addPromise), 'Expected `addPromise` to NOT be present, but it is.');
     test.done();
   },
 
diff --git a/testAsyncOptions/testDefactoPlusPromise.js b/testAsyncOptions/testDefactoPlusPromise.js
index 4bbf2710..d6c33810 100644
--- a/testAsyncOptions/testDefactoPlusPromise.js
+++ b/testAsyncOptions/testDefactoPlusPromise.js
@@ -46,10 +46,9 @@ module.exports = {
     test.ok(arrayList);
     test.ok(java.instanceOf(arrayList, "java.util.ArrayList"));
 
-    var api = _.functions(arrayList);
-    test.ok(_.includes(api, 'addSync'), 'Expected `addSync` to be present, but it is NOT.');
-    test.ok(_.includes(api, 'add'), 'Expected `add` to be present, but it is NOT.');
-    test.ok(_.includes(api, 'addPromise'), 'Expected `addPromise` to be present, but it is NOT.');
+    test.ok(!_.isUndefined(arrayList.addSync), 'Expected `addSync` to be present, but it is NOT.');
+    test.ok(!_.isUndefined(arrayList.add), 'Expected `add` to be present, but it is NOT.');
+    test.ok(!_.isUndefined(arrayList.addPromise), 'Expected `addPromise` to be present, but it is NOT.');
     test.done();
   },
 
diff --git a/testAsyncOptions/testDefault.js b/testAsyncOptions/testDefault.js
index 8ac92c18..4bdc8e71 100644
--- a/testAsyncOptions/testDefault.js
+++ b/testAsyncOptions/testDefault.js
@@ -16,10 +16,9 @@ module.exports = {
     test.ok(arrayList);
     test.ok(java.instanceOf(arrayList, "java.util.ArrayList"));
 
-    var api = _.functions(arrayList);
-    test.ok(_.includes(api, 'addSync'), 'Expected `addSync` to be present, but it is NOT.');
-    test.ok(_.includes(api, 'add'), 'Expected `add` to be present, but it is NOT.');
-    test.ok(!_.includes(api, 'addPromise'), 'Expected addPromise to NOT be present, but it is.');
+    test.ok(!_.isUndefined(arrayList.addSync), 'Expected `addSync` to be present, but it is NOT.');
+    test.ok(!_.isUndefined(arrayList.add), 'Expected `add` to be present, but it is NOT.');
+    test.ok(_.isUndefined(arrayList.addPromise), 'Expected `addPromise` to NOT be present, but it is.');
     test.done();
   },
 
diff --git a/testAsyncOptions/testNoAsync.js b/testAsyncOptions/testNoAsync.js
index 59e4c733..4f86a681 100644
--- a/testAsyncOptions/testNoAsync.js
+++ b/testAsyncOptions/testNoAsync.js
@@ -52,11 +52,10 @@ module.exports = {
     test.ok(arrayList);
     test.ok(java.instanceOf(arrayList, "java.util.ArrayList"));
 
-    var api = _.functions(arrayList);
-    test.ok(_.includes(api, 'addSync'), 'Expected `addSync` to be present, but it is NOT.');
-    test.ok(_.includes(api, 'addPromise'), 'Expected `addPromise` to be present, but it is NOT.');
-    test.ok(!_.includes(api, 'add'), 'Expected `add` to NOT be present, but it is.');
-    test.ok(!_.includes(api, 'addAsync'), 'Expected `addAsync` to NOT be present, but it is.');
+    test.ok(!_.isUndefined(arrayList.addSync), 'Expected `addSync` to be present, but it is NOT.');
+    test.ok(!_.isUndefined(arrayList.addPromise), 'Expected `addPromise` to be present, but it is NOT.');
+    test.ok(_.isUndefined(arrayList.add), 'Expected `add` to NOT be present, but it is.');
+    test.ok(_.isUndefined(arrayList.addAsync), 'Expected `addAsync` to NOT be present, but it is.');
     test.done();
   },
 
diff --git a/testAsyncOptions/testSyncDefaultPlusPromise.js b/testAsyncOptions/testSyncDefaultPlusPromise.js
index 578a374f..ebd30627 100644
--- a/testAsyncOptions/testSyncDefaultPlusPromise.js
+++ b/testAsyncOptions/testSyncDefaultPlusPromise.js
@@ -20,11 +20,10 @@ module.exports = {
     test.ok(arrayList);
     test.ok(java.instanceOf(arrayList, "java.util.ArrayList"));
 
-    var api = _.functions(arrayList);
-    test.ok(_.includes(api, 'add'), 'Expected `add` to be present, but it is NOT.');
-    test.ok(_.includes(api, 'addP'), 'Expected `addP` to be present, but it is NOT.');
-    test.ok(!_.includes(api, 'addSync'), 'Expected `addSync` to NOT be present, but it is.');
-    test.ok(!_.includes(api, 'addAsync'), 'Expected `addAsync` to NOT be present, but it is.');
+    test.ok(!_.isUndefined(arrayList.add), 'Expected `add` to be present, but it is NOT.');
+    test.ok(!_.isUndefined(arrayList.addP), 'Expected `addP` to be present, but it is NOT.');
+    test.ok(_.isUndefined(arrayList.addSync), 'Expected `addSync` to NOT be present, but it is.');
+    test.ok(_.isUndefined(arrayList.addAsync), 'Expected `addAsync` to NOT be present, but it is.');
     test.done();
   },