diff --git a/package.json b/package.json
index 507e0e6..ff19c08 100644
--- a/package.json
+++ b/package.json
@@ -38,7 +38,7 @@
     "grunt-contrib-copy": "1.0.0",
     "grunt-contrib-jshint": "3.2.0",
     "grunt-contrib-watch": "1.1.0",
-    "grunt-purgecss": "7.0.2",
+    "grunt-purgecss": "8.0.0",
     "grunt-replace-regex": "1.0.3",
     "grunt-sass": "4.0.1",
     "grunt-stylelint": "0.20.1",