diff --git a/src/Ookii.CommandLine.CodeFix/Ookii.CommandLine.CodeFix.csproj b/src/Ookii.CommandLine.CodeFix/Ookii.CommandLine.CodeFix.csproj
index 3c2c141..d96cf6f 100644
--- a/src/Ookii.CommandLine.CodeFix/Ookii.CommandLine.CodeFix.csproj
+++ b/src/Ookii.CommandLine.CodeFix/Ookii.CommandLine.CodeFix.csproj
@@ -13,13 +13,13 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="4.14.0">
+    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="5.3.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <!-- 4.11.x is the latest version that can be used with the .Net 8.0 SDK for both of these. -->
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.11.0" />
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.11.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="5.3.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="5.3.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/Ookii.CommandLine.Generator/Ookii.CommandLine.Generator.csproj b/src/Ookii.CommandLine.Generator/Ookii.CommandLine.Generator.csproj
index 8647f16..1fbb6d1 100644
--- a/src/Ookii.CommandLine.Generator/Ookii.CommandLine.Generator.csproj
+++ b/src/Ookii.CommandLine.Generator/Ookii.CommandLine.Generator.csproj
@@ -13,12 +13,12 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="4.14.0">
+    <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" Version="5.3.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <!-- 4.11.x is the latest version that can be used with the .Net 8.0 SDK. -->
-    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="4.11.0" />
+    <PackageReference Include="Microsoft.CodeAnalysis.CSharp" Version="5.3.0" />
   </ItemGroup>
 
   <ItemGroup>
diff --git a/src/Ookii.CommandLine.Tests/Ookii.CommandLine.Tests.csproj b/src/Ookii.CommandLine.Tests/Ookii.CommandLine.Tests.csproj
index 410e80b..e959d4d 100644
--- a/src/Ookii.CommandLine.Tests/Ookii.CommandLine.Tests.csproj
+++ b/src/Ookii.CommandLine.Tests/Ookii.CommandLine.Tests.csproj
@@ -15,10 +15,10 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.14.1" />
-    <PackageReference Include="MSTest.TestAdapter" Version="3.9.2" />
-    <PackageReference Include="MSTest.TestFramework" Version="3.9.2" />
-    <PackageReference Include="coverlet.collector" Version="6.0.4">
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.5.1" />
+    <PackageReference Include="MSTest.TestAdapter" Version="4.2.2" />
+    <PackageReference Include="MSTest.TestFramework" Version="4.2.2" />
+    <PackageReference Include="coverlet.collector" Version="10.0.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
diff --git a/src/Ookii.CommandLine/Ookii.CommandLine.csproj b/src/Ookii.CommandLine/Ookii.CommandLine.csproj
index 263e957..ecc5997 100644
--- a/src/Ookii.CommandLine/Ookii.CommandLine.csproj
+++ b/src/Ookii.CommandLine/Ookii.CommandLine.csproj
@@ -64,11 +64,11 @@ library for .Net applications.
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Windows.CsWin32" Version="0.3.183">
+    <PackageReference Include="Microsoft.Windows.CsWin32" Version="0.3.275">
       <PrivateAssets>all</PrivateAssets>
     </PackageReference>
     <PackageReference Include="Ookii.Common" Version="1.0.0" />
-    <PackageReference Include="System.Collections.Immutable" Version="9.0.5" Condition="'$(TargetFramework)'=='netstandard2.0' Or '$(TargetFramework)'=='netstandard2.1'" />
+    <PackageReference Include="System.Collections.Immutable" Version="10.0.7" Condition="'$(TargetFramework)'=='netstandard2.0' Or '$(TargetFramework)'=='netstandard2.1'" />
     <PackageReference Include="System.Memory" Version="4.6.3" Condition="'$(TargetFramework)'=='netstandard2.0'" />
   </ItemGroup>
 
diff --git a/src/Samples/Wpf/Wpf.csproj b/src/Samples/Wpf/Wpf.csproj
index 2d0214b..f03efdc 100644
--- a/src/Samples/Wpf/Wpf.csproj
+++ b/src/Samples/Wpf/Wpf.csproj
@@ -14,7 +14,7 @@ This is sample code, so you can use it freely.</Copyright>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.3296.44" />
+    <PackageReference Include="Microsoft.Web.WebView2" Version="1.0.3912.50" />
     <PackageReference Include="Ookii.Dialogs.Wpf" Version="5.0.1" />
     <PackageReference Include="System.Runtime.Extensions" Version="4.3.1" />
   </ItemGroup>