diff --git a/package.json b/package.json
index 4b26ac0..a46cb5b 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
   "dependencies": {
     "material-design-lite": "1.1.x",
     "nib": "1.1.x",
-    "rx": "4.0.x",
+    "rx": "4.1.0",
     "rx-angular": "1.1.x",
     "stylus-loader": "2.0.0",
     "ts-loader": "0.8.x"