diff --git a/Casks/microsoft-office.rb b/Casks/microsoft-office.rb
index 08c04df5ef..b0fa913ea7 100644
--- a/Casks/microsoft-office.rb
+++ b/Casks/microsoft-office.rb
@@ -1,6 +1,6 @@
 cask "microsoft-office" do
-  version "16.39.20071300"
-  sha256 "eb348c6844bcdb65c55e6180f0cf56ef70654d2af6bcb70291cceeec748b7155"
+  version "16.40.20081000"
+  sha256 "ae510e5780059cc7ff1a2fc2a2e54d2ca7f5bf3ce74db98cbb403029211c2da6"
 
   # officecdn-microsoft-com.akamaized.net/pr/C1297A47-86C4-4C1F-97FA-950631F94777/MacAutoupdate/ was verified as official when first introduced to the cask
   url "https://officecdn-microsoft-com.akamaized.net/pr/C1297A47-86C4-4C1F-97FA-950631F94777/MacAutoupdate/Microsoft_Office_#{version}_Installer.pkg"