diff --git a/package.json b/package.json
index a6964c3e54..a62fb70bee 100644
--- a/package.json
+++ b/package.json
@@ -50,7 +50,7 @@
     "html-tags": "^2.0.0",
     "ignore": "^3.3.3",
     "imurmurhash": "^0.1.4",
-    "known-css-properties": "^0.5.0",
+    "known-css-properties": "^0.6.0",
     "lodash": "^4.17.4",
     "log-symbols": "^2.0.0",
     "mathml-tag-names": "^2.0.1",