diff --git a/.travis.yml b/.travis.yml
index f4f6c0a..4369a0b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,6 +5,7 @@ env:
     - secure: "gve1nkeKkwFEG1VAT3i+JwYyAdF0gKXwKx0uxbkBTsmm2M+0MDusohQdFLoEIkSIFktXBIDefoa7iGpLKRfG2VsZLpwJgnvnD0HqbnuR+k+W+bu7BHt4CAaR6GTllsDCjyq9zNyhUThzSnf2WNIpOEF5kHspZlbGfawURuUJH/U="
     - secure: "jqVpmWxxBVXu2X8+XJMpKH0cooc2EKz9xKL2znBfYdNafJORSXcFAVbjCX5mZmVDcgIMwDtm2+gIG4P73hzJ2e3S+y2Z9ROJGyXHa3AxUTvXHQsxqzH8coHHqB8vTvfr0t2O5aKfpvpICpSea39r0hzNoMv6Ie5SwBdqj1YY9K0="
   matrix:
+    - NODE_VERSION="v12"
     - NODE_VERSION="v11"
     - NODE_VERSION="v10"
     - NODE_VERSION="v9"
diff --git a/fsevents.cc b/fsevents.cc
index 6fd6bc0..c5031fe 100644
--- a/fsevents.cc
+++ b/fsevents.cc
@@ -40,7 +40,7 @@ namespace fse {
     // Common
     CFArrayRef paths;
     std::vector<fse_event*> events;
-    static void Initialize(v8::Handle<v8::Object> exports);
+    static void Initialize(v8::Local<v8::Object> exports);
 
     // methods.cc - exposed
     static NAN_METHOD(New);
@@ -73,19 +73,16 @@ FSEvents::~FSEvents() {
 #include "src/constants.cc"
 #include "src/methods.cc"
 
-void FSEvents::Initialize(v8::Handle<v8::Object> exports) {
+void FSEvents::Initialize(v8::Local<v8::Object> exports) {
+  v8::Isolate* isolate = exports->GetIsolate();
+  v8::Local<v8::Context> context = isolate->GetCurrentContext();
   v8::Local<v8::FunctionTemplate> tpl = Nan::New<v8::FunctionTemplate>(FSEvents::New);
   tpl->SetClassName(Nan::New<v8::String>("FSEvents").ToLocalChecked());
   tpl->InstanceTemplate()->SetInternalFieldCount(1);
-  tpl->PrototypeTemplate()->Set(
-           Nan::New<v8::String>("start").ToLocalChecked(),
-           Nan::New<v8::FunctionTemplate>(FSEvents::Start));
-  tpl->PrototypeTemplate()->Set(
-           Nan::New<v8::String>("stop").ToLocalChecked(),
-           Nan::New<v8::FunctionTemplate>(FSEvents::Stop));
-  exports->Set(Nan::New<v8::String>("Constants").ToLocalChecked(), Constants());
-  exports->Set(Nan::New<v8::String>("FSEvents").ToLocalChecked(),
-               tpl->GetFunction());
+  Nan::SetPrototypeTemplate(tpl, "start", Nan::New<v8::FunctionTemplate>(FSEvents::Start));
+  Nan::SetPrototypeTemplate(tpl, "stop", Nan::New<v8::FunctionTemplate>(FSEvents::Stop));
+  Nan::Set(exports, Nan::New<v8::String>("Constants").ToLocalChecked(), Constants());
+  Nan::Set(exports, Nan::New<v8::String>("FSEvents").ToLocalChecked(), tpl->GetFunction(context).ToLocalChecked());
 }
 
 NODE_MODULE(fse, FSEvents::Initialize)
diff --git a/package.json b/package.json
index afd46a1..b5bc3e5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "fsevents",
-  "version": "1.2.8",
+  "version": "1.2.9",
   "description": "Native Access to Mac OS-X FSEvents",
   "main": "fsevents.js",
   "dependencies": {
diff --git a/src/constants.cc b/src/constants.cc
index fbd61ee..caccfad 100644
--- a/src/constants.cc
+++ b/src/constants.cc
@@ -86,25 +86,25 @@
 
 static v8::Local<v8::Object> Constants() {
   v8::Local<v8::Object> object = Nan::New<v8::Object>();
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagNone").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagNone));
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagMustScanSubDirs").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagMustScanSubDirs));
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagUserDropped").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagUserDropped));
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagKernelDropped").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagKernelDropped));
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagEventIdsWrapped").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagEventIdsWrapped));
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagHistoryDone").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagHistoryDone));
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagRootChanged").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagRootChanged));
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagMount").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagMount));
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagUnmount").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagUnmount));
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagItemCreated").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemCreated));
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagItemRemoved").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemRemoved));
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagItemInodeMetaMod").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemInodeMetaMod));
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagItemRenamed").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemRenamed));
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagItemModified").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemModified));
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagItemFinderInfoMod").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemFinderInfoMod));
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagItemChangeOwner").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemChangeOwner));
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagItemXattrMod").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemXattrMod));
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagItemIsFile").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemIsFile));
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagItemIsDir").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemIsDir));
-  object->Set(Nan::New<v8::String>("kFSEventStreamEventFlagItemIsSymlink").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemIsSymlink));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagNone").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagNone));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagMustScanSubDirs").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagMustScanSubDirs));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagUserDropped").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagUserDropped));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagKernelDropped").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagKernelDropped));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagEventIdsWrapped").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagEventIdsWrapped));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagHistoryDone").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagHistoryDone));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagRootChanged").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagRootChanged));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagMount").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagMount));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagUnmount").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagUnmount));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagItemCreated").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemCreated));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagItemRemoved").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemRemoved));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagItemInodeMetaMod").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemInodeMetaMod));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagItemRenamed").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemRenamed));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagItemModified").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemModified));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagItemFinderInfoMod").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemFinderInfoMod));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagItemChangeOwner").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemChangeOwner));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagItemXattrMod").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemXattrMod));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagItemIsFile").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemIsFile));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagItemIsDir").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemIsDir));
+  Nan::Set(object, Nan::New<v8::String>("kFSEventStreamEventFlagItemIsSymlink").ToLocalChecked(), Nan::New<v8::Integer>(kFSEventStreamEventFlagItemIsSymlink));
   return object;
 }