diff --git a/packages/kopano-deskapp-nightly/kopano-deskapp-nightly.nuspec b/packages/kopano-deskapp-nightly/kopano-deskapp-nightly.nuspec
index abc7271..370f21f 100755
--- a/packages/kopano-deskapp-nightly/kopano-deskapp-nightly.nuspec
+++ b/packages/kopano-deskapp-nightly/kopano-deskapp-nightly.nuspec
@@ -2,7 +2,7 @@
 <package xmlns="http://schemas.microsoft.com/packaging/2011/08/nuspec.xsd">
   <metadata>
     <id>kopano-deskapp-nightly</id>
-    <version>2.4.5</version>
+    <version>2.5.4</version>
     <title>Kopano DeskApp</title>
     <authors>Kopano</authors>
     <owners>foo.li systeme + software</owners>
@@ -14,7 +14,7 @@
 
       DeskApp is designed to be the bridge between WebApp and the desktop. DeskApp adds features a web application in a browser can’t, such as being set as the default email client, integrate with the file system to send any file as an attachment. Or even with the operating system so you can send emails from any office application.</description>
     <summary>Kopano DeskApp</summary>
-    <releaseNotes>release 2.4.5 (2019-10-09)</releaseNotes>
+    <releaseNotes>release 2.5.4 (2019-12-06)</releaseNotes>
     <copyright>2019 Kopano</copyright>
     <language />
     <tags>groupware kopano deskapp nightly admin</tags>
diff --git a/packages/kopano-deskapp-nightly/tools/chocolateyinstall.ps1 b/packages/kopano-deskapp-nightly/tools/chocolateyinstall.ps1
index 14de801..b2d4d6d 100755
--- a/packages/kopano-deskapp-nightly/tools/chocolateyinstall.ps1
+++ b/packages/kopano-deskapp-nightly/tools/chocolateyinstall.ps1
@@ -1,17 +1,17 @@
 # Kopano DeskApp
-# 2017-2019 foo.li systeme + software
+# 2017-2020 foo.li systeme + software
 # https://www.gnu.org/licenses/gpl.txt
 
 $packageName    = 'kopano-deskapp-nightly'
 $packageSearch  = 'Kopano DeskApp'
 $installerType  = 'msi'
 $silentArgs     = '/qb'
-$version        = '2.4.5'
+$version        = '2.5.4'
 $url            = 'https://download.kopano.io/community/deskapp:/Windows/kopano-deskapp-' + $version + '-x86.msi'
 $url64          = 'https://download.kopano.io/community/deskapp:/Windows/kopano-deskapp-' + $version + '-x64.msi'
-$checksum       = '0e7063f0cae651f683101de81c1f1c5785caf037'
+$checksum       = '1dc07c7784bf684ef704b7a53128d513eccaf7d2'
 $checksumType   = 'sha1'
-$checksum64     = 'd5a1691f1c5071365448447d711d4468f51c5297'
+$checksum64     = '192a6352857ce725fdbe58131becc69969a09e69'
 $checksumType64 = $checksumType
 
 try {