diff --git a/Cartfile b/Cartfile
index e31f930..4d6b5df 100644
--- a/Cartfile
+++ b/Cartfile
@@ -1 +1 @@
-github "fxm90/LightweightObservable" ~> 1.0
+github "fxm90/LightweightObservable" ~> 2.0