diff --git a/Hi.Webapi.csproj b/Hi.Webapi.csproj
index bd4a58d..b2d716e 100644
--- a/Hi.Webapi.csproj
+++ b/Hi.Webapi.csproj
@@ -10,7 +10,7 @@
     <AssemblyName>Hi.Webapi</AssemblyName>
     <RootNamespace>$(AssemblyName)</RootNamespace>
     <Description>HiNC webapi class library.</Description>
-    <VersionBuild>2</VersionBuild>
+    <VersionBuild>5</VersionBuild>
     <VersionPrefix>3.1.$(VersionBuild)</VersionPrefix>
     <PackageTags>HiAPI</PackageTags>
     <Configurations>Debug;Release</Configurations>
@@ -32,6 +32,7 @@
     <Optimize>true</Optimize>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
     <CopyLocalLockFileAssemblies>true</CopyLocalLockFileAssemblies>
+    <IsPackable>true</IsPackable>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)'=='Debug'">
     <DefineConstants>DEBUG;TRACE</DefineConstants>
diff --git a/Hubs/RenderingHub.cs b/Hubs/RenderingHub.cs
index 73ac795..62d8d79 100644
--- a/Hubs/RenderingHub.cs
+++ b/Hubs/RenderingHub.cs
@@ -13,9 +13,9 @@ namespace Hi.Webapi.Hubs
     {
         private readonly RenderingService _renderingService;
         private readonly ILogger<RenderingHub> _logger;
-        private readonly Dictionary<string, byte[]> _lastFrameCache = new();
-        private readonly Dictionary<string, DateTime> _lastFrameTime = new();
-        private readonly Dictionary<string, Mat4d> _sketchViewCache = new();
+        private readonly Dictionary<string, byte[]> _lastFrameCache = [];
+        private readonly Dictionary<string, DateTime> _lastFrameTime = [];
+        private readonly Dictionary<string, Mat4d> _sketchViewCache = [];
 
         public RenderingHub(RenderingService renderingService, ILogger<RenderingHub> logger)
         {