diff --git a/Crystallography.Controls/Crystallography.Controls.csproj b/Crystallography.Controls/Crystallography.Controls.csproj
index 6435434..c3c4938 100644
--- a/Crystallography.Controls/Crystallography.Controls.csproj
+++ b/Crystallography.Controls/Crystallography.Controls.csproj
@@ -4,8 +4,8 @@
     <OutputType>Library</OutputType>
     <TargetFramework>net9.0-windows10.0.26100.0</TargetFramework>
     <UseWindowsForms>true</UseWindowsForms>
-    <AssemblyVersion>2024.12.3.0229</AssemblyVersion>
-    <FileVersion>2024.12.3.0229</FileVersion>
+    <AssemblyVersion>2024.12.6.0240</AssemblyVersion>
+    <FileVersion>2024.12.6.0240</FileVersion>
     <ApplicationHighDpiMode>PerMonitorV2</ApplicationHighDpiMode>
     <ApplicationUseCompatibleTextRendering>true</ApplicationUseCompatibleTextRendering>
     <ApplicationVisualStyles>true</ApplicationVisualStyles>
diff --git a/Crystallography/Crystallography.csproj b/Crystallography/Crystallography.csproj
index 9ccea24..494bad6 100644
--- a/Crystallography/Crystallography.csproj
+++ b/Crystallography/Crystallography.csproj
@@ -4,8 +4,8 @@
     <OutputType>Library</OutputType>
     <TargetFramework>net9.0-windows10.0.26100.0</TargetFramework>
     <UseWindowsForms>true</UseWindowsForms>
-    <AssemblyVersion>2024.12.3.0229</AssemblyVersion>
-    <FileVersion>2024.12.3.0229</FileVersion>
+    <AssemblyVersion>2024.12.6.0240</AssemblyVersion>
+    <FileVersion>2024.12.6.0240</FileVersion>
     <SupportedOSPlatformVersion>7.0</SupportedOSPlatformVersion>
     <Platforms>AnyCPU;x64</Platforms>
   </PropertyGroup>
diff --git a/PDIndexer/FormMain.cs b/PDIndexer/FormMain.cs
index 55f969a..7cc1960 100644
--- a/PDIndexer/FormMain.cs
+++ b/PDIndexer/FormMain.cs
@@ -482,8 +482,12 @@ public FormMain()
         if (!DesignMode)
         {
             var key = Microsoft.Win32.Registry.CurrentUser.CreateSubKey("Software\\Crystallography\\PDIndexer");
-            if (4.440 > Convert.ToDouble(key.GetValue("Version", "0")))
-                ClearRegistry();
+            try
+            {
+                if (4440 > Convert.ToInt32(key.GetValue("Version".Replace(".", ""), "0")))
+                    ClearRegistry();
+            }
+            catch { ClearRegistry(); }
             Registry(Reg.Mode.Read);
         }
 
diff --git a/PDIndexer/PDIndexer.csproj b/PDIndexer/PDIndexer.csproj
index 4303717..4690ea6 100644
--- a/PDIndexer/PDIndexer.csproj
+++ b/PDIndexer/PDIndexer.csproj
@@ -4,8 +4,8 @@
     <OutputType>WinExe</OutputType>
     <TargetFramework>net9.0-windows10.0.26100.0</TargetFramework>
     <UseWindowsForms>true</UseWindowsForms>
-    <AssemblyVersion>2024.12.3.0229</AssemblyVersion>
-    <FileVersion>2024.12.3.0229</FileVersion>
+    <AssemblyVersion>2024.12.6.0243</AssemblyVersion>
+    <FileVersion>2024.12.6.0243</FileVersion>
     <ApplicationIcon>App.ico</ApplicationIcon>
     <SupportedOSPlatformVersion>7.0</SupportedOSPlatformVersion>
     <ApplicationHighDpiMode>PerMonitorV2</ApplicationHighDpiMode>
diff --git a/PDIndexer/Version.cs b/PDIndexer/Version.cs
index 88c9261..c531281 100644
--- a/PDIndexer/Version.cs
+++ b/PDIndexer/Version.cs
@@ -297,7 +297,8 @@ static class Version
         ;
 
     static public string VersionAndDate { get => History.Remove(0, 10).Remove(20); }
-    static public double VersionValue { get => Convert.ToDouble(VersionAndDate[3..^12], System.Globalization.CultureInfo.InvariantCulture); }
+    //バージョンの値 (20241206 doubleから整数に変換)
+    static public int VersionValue { get => Convert.ToInt32(VersionAndDate[3..^12].Replace(".",""), System.Globalization.CultureInfo.InvariantCulture); }
 
     /// <summary>
     /// はじめに