diff --git a/package.json b/package.json
index fdba3c0..92e40d6 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
     "cssnano": "^3.10.0",
     "jsdoc-to-markdown": "^3.0.0",
     "nyc": "^11.0.1",
-    "postcss": "^6.0.3",
+    "postcss": "^6.0.8",
     "postcss-cssnext": "^3.0.0",
     "postcss-import": "^9.1.0",
     "postcss-nested": "^1.0.0",