diff --git a/packages/vdos/tools/chocolateyinstall.ps1 b/packages/vdos/tools/chocolateyinstall.ps1
index 19bdb33..2d58203 100755
--- a/packages/vdos/tools/chocolateyinstall.ps1
+++ b/packages/vdos/tools/chocolateyinstall.ps1
@@ -1,12 +1,12 @@
 # vDOS for Windows
-# 2011-2020 foo.li systeme + software
+# 2011-2021 foo.li systeme + software
 
 # download site has ssl issues, setup is included in package...
 
 # package installs to 'default' location: c:\vDOS
 
 $packageName	= 'vdos'
-$version        = '2020.03.01'
+$version        = '2021.05.01'
 $installerType	= 'exe'
 $scriptPath     =  $(Split-Path $MyInvocation.MyCommand.Path)
 $setupFullPath  = Join-Path $scriptPath 'vDosSetup.exe'
diff --git a/packages/vdos/vdos.nuspec b/packages/vdos/vdos.nuspec
index 16d6fbd..a0ffb6f 100755
--- a/packages/vdos/vdos.nuspec
+++ b/packages/vdos/vdos.nuspec
@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
   <metadata>
     <id>vdos</id>
-    <version>2020.03.01</version>
+    <version>2021.05.01</version>
     <title>vDOS</title>
     <authors>Jos Schaars</authors>
     <owners>foo.li systeme + software</owners>