diff --git a/WebApiClient.Extensions.MessagePack/WebApiClient.Extensions.MessagePack.csproj b/WebApiClient.Extensions.MessagePack/WebApiClient.Extensions.MessagePack.csproj
index f44b5d4..d4c35fc 100644
--- a/WebApiClient.Extensions.MessagePack/WebApiClient.Extensions.MessagePack.csproj
+++ b/WebApiClient.Extensions.MessagePack/WebApiClient.Extensions.MessagePack.csproj
@@ -14,7 +14,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="MessagePack" Version="1.9.3" />
+    <PackageReference Include="MessagePack" Version="1.9.11" />
     <PackageReference Include="WebApiClient.JIT" Version="1.0.3" />
   </ItemGroup>