diff --git a/docs/package.json b/docs/package.json
index 34744436..fabca8c1 100644
--- a/docs/package.json
+++ b/docs/package.json
@@ -18,7 +18,7 @@
     "@babel/node": "7.0.0",
     "@babel/plugin-proposal-object-rest-spread": "7.0.0",
     "@babel/preset-env": "7.0.0",
-    "@fullhuman/postcss-purgecss": "1.0.1",
+    "@fullhuman/postcss-purgecss": "1.1.0",
     "autoprefixer": "8.6.5",
     "babel-core": "7.0.0-bridge.0",
     "babel-eslint": "8.2.6",
diff --git a/docs/yarn.lock b/docs/yarn.lock
index 4f10c315..8107ca95 100644
--- a/docs/yarn.lock
+++ b/docs/yarn.lock
@@ -680,9 +680,9 @@
     lodash "^4.17.10"
     to-fast-properties "^2.0.0"
 
-"@fullhuman/postcss-purgecss@1.0.1":
-  version "1.0.1"
-  resolved "https://registry.yarnpkg.com/@fullhuman/postcss-purgecss/-/postcss-purgecss-1.0.1.tgz#e3269e9e2824d815f83a35ab0b5312ceb18b419b"
+"@fullhuman/postcss-purgecss@1.1.0":
+  version "1.1.0"
+  resolved "https://registry.yarnpkg.com/@fullhuman/postcss-purgecss/-/postcss-purgecss-1.1.0.tgz#fa423630e01b09604de42637f89eac72471b8961"
   dependencies:
     purgecss "^1.0.0"