diff --git a/__tests__/applyAtRule.test.js b/__tests__/applyAtRule.test.js
index 693a412c9..652b44940 100644
--- a/__tests__/applyAtRule.test.js
+++ b/__tests__/applyAtRule.test.js
@@ -1,5 +1,4 @@
-var postcss = require('postcss')
-
+import postcss from 'postcss'
 import plugin from '../src/lib/substituteClassApplyAtRules'
 
 function run(input, opts) {