diff --git a/lib/parse.js b/lib/parse.js
index 23bf0c7..9ff8035 100644
--- a/lib/parse.js
+++ b/lib/parse.js
@@ -4,7 +4,7 @@ module.exports = parse
 
 var Parser = require('css-selector-parser').CssSelectorParser
 var zwitch = require('zwitch')
-var nthCheck = require('nth-check')
+var nthCheck = require('nth-check').default
 
 var nth = ['nth-child', 'nth-last-child', 'nth-of-type', 'nth-last-of-type']
 
diff --git a/package.json b/package.json
index 3fff8c6..0224511 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,7 @@
   "dependencies": {
     "css-selector-parser": "^1.0.0",
     "not": "^0.1.0",
-    "nth-check": "^1.0.0",
+    "nth-check": "^2.0.0",
     "unist-util-is": "^4.0.0",
     "zwitch": "^1.0.0"
   },