diff --git a/packages/gatsby-transformer-remark/package.json b/packages/gatsby-transformer-remark/package.json
index 57891779fb057..45c35879af8ab 100644
--- a/packages/gatsby-transformer-remark/package.json
+++ b/packages/gatsby-transformer-remark/package.json
@@ -10,7 +10,7 @@
     "babel-runtime": "^6.26.0",
     "bluebird": "^3.5.0",
     "graphql-type-json": "^0.1.4",
-    "gray-matter": "^3.0.0",
+    "gray-matter": "^4.0.0",
     "hast-util-raw": "^2.0.2",
     "hast-util-to-html": "^3.0.0",
     "lodash": "^4.17.4",