diff --git a/package.json b/package.json
index 29ead9a..959602e 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
 		"object"
 	],
 	"dependencies": {
-		"@sindresorhus/is": "^0.3.0"
+		"@sindresorhus/is": "^0.4.0"
 	},
 	"devDependencies": {
 		"@types/node": "^8.0.31",