diff --git a/DecompilerNuGetDemos.workbook b/DecompilerNuGetDemos.workbook
index 0adb88217..59e726d2a 100644
--- a/DecompilerNuGetDemos.workbook
+++ b/DecompilerNuGetDemos.workbook
@@ -6,7 +6,7 @@ platforms:
 - DotNetCore
 packages:
 - id: ICSharpCode.Decompiler
-  version: 4.0.0.4521
+  version: 5.0.0.4688-preview1
 ---
 
 Setup: load the references required to work with the decompiler
diff --git a/ICSharpCode.Decompiler.Console/ICSharpCode.Decompiler.Console.csproj b/ICSharpCode.Decompiler.Console/ICSharpCode.Decompiler.Console.csproj
index cf29288d1..35de0ace1 100644
--- a/ICSharpCode.Decompiler.Console/ICSharpCode.Decompiler.Console.csproj
+++ b/ICSharpCode.Decompiler.Console/ICSharpCode.Decompiler.Console.csproj
@@ -7,7 +7,7 @@
     <PackAsTool>true</PackAsTool>
     <AssemblyName>ilspycmd</AssemblyName>
     <ToolCommandName>ilspycmd</ToolCommandName>
-    <Version>4.0</Version>
+    <Version>5.0.0-preview1</Version>
     <Description>Command-line decompiler using the ILSpy decompilation engine</Description>
     <Copyright>Copyright 2011-2019 AlphaSierraPapa</Copyright>
     <PackageProjectUrl>https://github.com/icsharpcode/ILSpy/</PackageProjectUrl>
@@ -15,9 +15,10 @@
     <PackageIconUrl>https://ilspy.net/images/icon32.png</PackageIconUrl>
     <RepositoryUrl>https://github.com/icsharpcode/ILSpy/</RepositoryUrl>
     <Company />
-    <AssemblyVersion>4.0.0.0</AssemblyVersion>
-    <FileVersion>4.0.0.0</FileVersion>
+    <AssemblyVersion>5.0.0.0</AssemblyVersion>
+    <FileVersion>5.0.0.0</FileVersion>
     <GeneratePackageOnBuild>true</GeneratePackageOnBuild>
+    <Authors>ILSpy Team</Authors>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|AnyCPU'">
@@ -27,7 +28,7 @@
 
   <ItemGroup>
     <PackageReference Include="McMaster.Extensions.CommandLineUtils" Version="2.3.2" />
-    <PackageReference Include="ICSharpCode.Decompiler" Version="4.0.0.4521" />
+    <PackageReference Include="ICSharpCode.Decompiler" Version="5.0.0.4688-preview1" />
 
     <PackageReference Include="System.IO.FileSystem.Primitives" Version="4.3.0" />
     <PackageReference Include="System.Runtime.Handles" Version="4.3.0" />
diff --git a/ICSharpCode.Decompiler.PowerShell/ICSharpCode.Decompiler.PowerShell.csproj b/ICSharpCode.Decompiler.PowerShell/ICSharpCode.Decompiler.PowerShell.csproj
index 514c347a6..caaf001bd 100644
--- a/ICSharpCode.Decompiler.PowerShell/ICSharpCode.Decompiler.PowerShell.csproj
+++ b/ICSharpCode.Decompiler.PowerShell/ICSharpCode.Decompiler.PowerShell.csproj
@@ -8,7 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="PowerShellStandard.Library" Version="5.1.0" />
-    <PackageReference Include="ICSharpCode.Decompiler" Version="4.0.0.4521" />
+    <PackageReference Include="ICSharpCode.Decompiler" Version="5.0.0.4688-preview1" />
   </ItemGroup>
 
 </Project>