diff --git a/packages/binding/package.json b/packages/binding/package.json
index 6546a0f..e45746e 100644
--- a/packages/binding/package.json
+++ b/packages/binding/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-gtk/binding",
-  "version": "0.0.8",
+  "version": "0.0.9",
   "description": "react gtk bindings",
   "keywords": [
     "bridge",
@@ -46,7 +46,7 @@
   "dependencies": {
     "@types/node": "^11.10.5",
     "@types/react-reconciler": "^0.18.0",
-    "node-gtk": "^0.2.2",
+    "node-gtk": "^0.4.0",
     "prop-types": "^15.7.2",
     "react": "^16.8.4",
     "react-reconciler": "^0.20.2"
diff --git a/packages/binding/src/reconciler.ts b/packages/binding/src/reconciler.ts
index 70fd990..65c5140 100644
--- a/packages/binding/src/reconciler.ts
+++ b/packages/binding/src/reconciler.ts
@@ -185,8 +185,8 @@ export default ReactReconciler<
   },
 
   scheduleDeferredCallback(
-    callback: () => any,
-    _options: { timeout: number }
+    callback?: () => any,
+    _options?: { timeout: number }
   ): any {
     if (callback) {
       throw new Error(