diff --git a/Disp/WpfDispUtil.cs b/Disp/WpfDispUtil.cs
index 72ca6ef..854cb29 100644
--- a/Disp/WpfDispUtil.cs
+++ b/Disp/WpfDispUtil.cs
@@ -1,4 +1,3 @@
-using Google.Protobuf.WellKnownTypes;
 using Hi.Disp;
 using Hi.Geom;
 using Hi.Licenses;
diff --git a/Hi.WpfPlus.csproj b/Hi.WpfPlus.csproj
index 6114e0a..806f7e1 100644
--- a/Hi.WpfPlus.csproj
+++ b/Hi.WpfPlus.csproj
@@ -12,7 +12,7 @@
 			HiAPI wpf canvas.
 		</Description>
     <Configurations>Debug;Release</Configurations>
-    <VersionBuild>140</VersionBuild>
+    <VersionBuild>141</VersionBuild>
     <VersionPrefix>3.1.$(VersionBuild)</VersionPrefix>
     <PackageId>Hi.WpfPlus</PackageId>
     <PackageTags>HiAPI</PackageTags>