diff --git a/build.cake b/build.cake
index 3be1841f..7eb30fd7 100644
--- a/build.cake
+++ b/build.cake
@@ -1,7 +1,7 @@
 #tool "nuget:?package=GitVersion.CommandLine"
 #tool "nuget:?package=GitReleaseNotes"
 #addin nuget:?package=Cake.Json
-#addin nuget:?package=Newtonsoft.Json
+#addin nuget:?package=Newtonsoft.Json&version=9.0.1
 #tool "nuget:?package=OpenCover"
 #tool "nuget:?package=ReportGenerator"
 #tool coveralls.net