diff --git a/src/GeminiLab.Core2.CommandLineParser/GeminiLab.Core2.CommandLineParser.csproj b/src/GeminiLab.Core2.CommandLineParser/GeminiLab.Core2.CommandLineParser.csproj
index f1bb601..aedf01b 100644
--- a/src/GeminiLab.Core2.CommandLineParser/GeminiLab.Core2.CommandLineParser.csproj
+++ b/src/GeminiLab.Core2.CommandLineParser/GeminiLab.Core2.CommandLineParser.csproj
@@ -10,7 +10,7 @@
     <AssemblyVersion>2.0.0</AssemblyVersion>
     <Copyright>Copyright © Gemini Laboratory 2017 - 2020</Copyright>
     <FileVersion>2.0.0.0</FileVersion>
-    <Version>2.0.0-preview-0</Version>
+    <Version>2.0.0-preview-1</Version>
     <LangVersion>8.0</LangVersion>
     <Configurations>Develop;Preview;Release</Configurations>
     <OutputPath>..\..\bin\$(Configuration)\</OutputPath>