diff --git a/build.fsx b/build.fsx
index f3a37a2fdd4..217b42b5c37 100644
--- a/build.fsx
+++ b/build.fsx
@@ -37,7 +37,7 @@ nuget Fake.Windows.Chocolatey prerelease
 nuget Fake.JavaScript.Npm prerelease
 nuget Fake.Tools.Git prerelease
 nuget Mono.Cecil prerelease
-nuget System.Reactive.Compatibility
+nuget System.Reactive
 nuget Suave
 nuget Newtonsoft.Json
 nuget System.Net.Http