diff --git a/sandbox/XamarinAndroid/packages.config b/sandbox/XamarinAndroid/packages.config
index 62bebc511..28761d67d 100644
--- a/sandbox/XamarinAndroid/packages.config
+++ b/sandbox/XamarinAndroid/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="MessagePack" version="0.4.2" targetFramework="monoandroid60" />
+  <package id="MessagePack" version="1.9.11" targetFramework="monoandroid60" />
   <package id="System.Reflection.Emit" version="4.3.0" targetFramework="monoandroid60" />
   <package id="System.Threading.Tasks.Extensions" version="4.3.0" targetFramework="monoandroid60" />
   <package id="System.ValueTuple" version="4.3.0" targetFramework="monoandroid60" />