diff --git a/automatic/calibre/calibre.nuspec b/automatic/calibre/calibre.nuspec
index cb7298451f2..4cbfad8a198 100644
--- a/automatic/calibre/calibre.nuspec
+++ b/automatic/calibre/calibre.nuspec
@@ -4,7 +4,7 @@
   <metadata>
     <id>calibre</id>
     <title>Calibre</title>
-    <version>3.39.1</version>
+    <version>3.40.1</version>
     <authors>Kovid Goyal</authors>
     <owners>chocolatey, gep13</owners>
     <summary>calibre is the one stop solution to all your e-book needs.</summary>
diff --git a/automatic/calibre/legal/VERIFICATION.txt b/automatic/calibre/legal/VERIFICATION.txt
index cbbb6be9798..ab0be9c3ec4 100644
--- a/automatic/calibre/legal/VERIFICATION.txt
+++ b/automatic/calibre/legal/VERIFICATION.txt
@@ -7,15 +7,15 @@ location on <https://download.calibre-ebook.com/3.html>
 and can be verified by doing the following:
 
 1. Download the following:
-  32-Bit software: <https://download.calibre-ebook.com/3.39.1/calibre-3.39.1.msi>
-  64-Bit software: <https://download.calibre-ebook.com/3.39.1/calibre-64bit-3.39.1.msi>
+  32-Bit software: <https://download.calibre-ebook.com/3.40.1/calibre-3.40.1.msi>
+  64-Bit software: <https://download.calibre-ebook.com/3.40.1/calibre-64bit-3.40.1.msi>
 2. Get the checksum using one of the following methods:
   - Using powershell function 'Get-FileHash'
   - Use chocolatey utility 'checksum.exe'
 3. The checksums should match the following:
 
   checksum type: sha256
-  checksum32: 6FC82EDF666E6886DC044F3DDCB2C3C2D6781A012BCC123383FC9B3076580CCC
-  checksum64: B172345DB078F230B6F39ABE611D83B23271AC009C68D504010671A848E860F0
+  checksum32: 0916AE8BECC62A7E8AAD22607D0F143DB1F32048E3ADBEAA9F2F280CE1024E9D
+  checksum64: ED3F6031C76BB9AC0643CB6CAAAC2F4F83289FA1C887DDA7202A50B29E91AB12
 
 The file 'LICENSE.txt' has been obtained from <https://github.com/kovidgoyal/calibre/blob/89c271759db5c71202251895f6793e4c1ec65ee6/LICENSE>
diff --git a/automatic/calibre/tools/chocolateyInstall.ps1 b/automatic/calibre/tools/chocolateyInstall.ps1
index 0e4d091ddbf..4f542f0c32b 100644
--- a/automatic/calibre/tools/chocolateyInstall.ps1
+++ b/automatic/calibre/tools/chocolateyInstall.ps1
@@ -5,8 +5,8 @@ $toolsPath = "$(Split-Path -parent $MyInvocation.MyCommand.Definition)"
 $packageArgs = @{
   packageName    = $env:ChocolateyPackageName
   fileType       = 'MSI'
-  file           = "$toolsPath\calibre-3.39.1.msi"
-  file64         = "$toolsPath\calibre-64bit-3.39.1.msi"
+  file           = "$toolsPath\calibre-3.40.1.msi"
+  file64         = "$toolsPath\calibre-64bit-3.40.1.msi"
   softwareName   = 'calibre*'
   silentArgs     = '/quiet'
   validExitCodes = @(0, 3010, 1641)