diff --git a/index.js b/index.js
index 50425ac..7d3f9ab 100644
--- a/index.js
+++ b/index.js
@@ -126,11 +126,10 @@ class UpdateNotifier {
 			return this;
 		}
 
-		options = {
+		options = Object.assign({
 			isGlobal: isInstalledGlobally(),
-			isYarnGlobal: isYarnGlobal()(),
-			...options
-		};
+			isYarnGlobal: isYarnGlobal()()
+		}, options);
 
 		let installCommand;
 
diff --git a/package.json b/package.json
index 5d3edf8..3e97652 100644
--- a/package.json
+++ b/package.json
@@ -53,5 +53,10 @@
 		"mock-require": "^3.0.3",
 		"strip-ansi": "^5.2.0",
 		"xo": "^0.24.0"
+	},
+	"xo": {
+		"rules": {
+			"prefer-object-spread": 0
+		}
 	}
 }