diff --git a/Package.resolved b/Package.resolved
index 7d3c0c5e..de13061c 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -50,8 +50,8 @@
       "kind" : "remoteSourceControl",
       "location" : "https://github.com/onevcat/Rainbow",
       "state" : {
-        "revision" : "0c627a4f8a39ef37eadec1ceec02e4a7f55561ac",
-        "version" : "4.1.0"
+        "revision" : "cdf146ae671b2624917648b61c908d1244b98ca1",
+        "version" : "4.2.1"
       }
     },
     {