diff --git a/README.md b/README.md
index 04bc76e2..23918ddc 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # SourceGit
 
-开源的Git客户端，仅用于Windows 10。需要`.NET 5.0`
+开源的Git客户端，仅用于Windows 10。
 
 ## 预览
 
diff --git a/src/SourceGit.csproj b/src/SourceGit.csproj
index 05ac9f12..c78b8dab 100644
--- a/src/SourceGit.csproj
+++ b/src/SourceGit.csproj
@@ -1,10 +1,7 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
     <PropertyGroup>
-        <TargetFramework>net5.0-windows</TargetFramework>
+        <TargetFramework>net46</TargetFramework>
         <OutputType>WinExe</OutputType>
-        <RuntimeIdentifier>win-x64</RuntimeIdentifier>
-        <SelfContained>false</SelfContained>
-        <PublishSingleFile>true</PublishSingleFile>
         <UseWPF>true</UseWPF>
         <UseWindowsForms>true</UseWindowsForms>
         <ApplicationIcon>App.ico</ApplicationIcon>
@@ -12,7 +9,7 @@
         <Description>OpenSource GIT client for Windows</Description>
         <Copyright>Copyright © sourcegit 2020. All rights reserved.</Copyright>
         <ApplicationManifest>App.manifest</ApplicationManifest>
-        <Version>1.8</Version>
+        <Version>1.9</Version>
         <PackageLicenseExpression>MIT</PackageLicenseExpression>
         <StartupObject>SourceGit.App</StartupObject>
         <PackageProjectUrl>https://gitee.com/sourcegit/SourceGit.git</PackageProjectUrl>
diff --git a/src/UI/Blame.xaml.cs b/src/UI/Blame.xaml.cs
index bb0b1284..c69175ac 100644
--- a/src/UI/Blame.xaml.cs
+++ b/src/UI/Blame.xaml.cs
@@ -117,7 +117,8 @@ namespace SourceGit.UI {
                                 new Typeface(content.FontFamily, p.FontStyle, p.FontWeight, p.FontStretch),
                                 content.FontSize,
                                 Brushes.Black,
-                                VisualTreeHelper.GetDpi(this).PixelsPerDip);
+                                new NumberSubstitution(),
+                                TextFormattingMode.Ideal);
                             if (minWidth < formatter.Width) {
                                 content.Document.PageWidth = formatter.Width + 16;
                                 minWidth = formatter.Width;
diff --git a/src/UI/DiffViewer.xaml.cs b/src/UI/DiffViewer.xaml.cs
index 603284d0..d95f5936 100644
--- a/src/UI/DiffViewer.xaml.cs
+++ b/src/UI/DiffViewer.xaml.cs
@@ -218,7 +218,8 @@ namespace SourceGit.UI {
                 new Typeface(leftText.FontFamily, p.FontStyle, p.FontWeight, p.FontStretch),
                 leftText.FontSize,
                 Brushes.Black,
-                VisualTreeHelper.GetDpi(this).PixelsPerDip);
+                new NumberSubstitution(),
+                TextFormattingMode.Ideal);
 
             if (minWidth < formatter.Width) minWidth = formatter.Width;