diff --git a/package.json b/package.json
index bb20a5291b..671102982e 100644
--- a/package.json
+++ b/package.json
@@ -72,8 +72,8 @@
     "nodemailer-smtp-transport": "^2.4.1",
     "passport": "^0.3.0",
     "passport-local": "1.0.0",
-    "postcss": "^5.0.13",
-    "postcss-clean": "^1.0.0",
+    "postcss": "6.0.1",
+    "postcss-clean": "1.0.2",
     "promise-polyfill": "^6.0.2",
     "prompt": "^1.0.0",
     "redis": "~2.6.2",