diff --git a/packages/definitions-parser/allowedPackageJsonDependencies.txt b/packages/definitions-parser/allowedPackageJsonDependencies.txt
index bd47e6f631..9e77b14235 100644
--- a/packages/definitions-parser/allowedPackageJsonDependencies.txt
+++ b/packages/definitions-parser/allowedPackageJsonDependencies.txt
@@ -674,6 +674,7 @@ google-gax
 got
 graphql
 graphql-tools
+gray-matter
 grpc
 handlebars
 helmet