diff --git a/utils/build.ps1 b/utils/build.ps1
index 7c5abe6cf9d0c..45da6691f1db0 100644
--- a/utils/build.ps1
+++ b/utils/build.ps1
@@ -183,7 +183,7 @@ $VSInstallRoot = & $vswhere -nologo -latest -products "*" -all -prerelease -prop
 $msbuild = "$VSInstallRoot\MSBuild\Current\Bin\$BuildArchName\MSBuild.exe"
 
 # Hoist to global scope as this is used in two sites.
-$WiXVersion = "4.0.5"
+$WiXVersion = "4.0.6"
 
 # Avoid $env:ProgramFiles in case this script is running as x86
 $UnixToolsBinDir = "$env:SystemDrive\Program Files\Git\usr\bin"
@@ -762,7 +762,7 @@ function Fetch-Dependencies {
   }
 
   $WiXURL = "https://www.nuget.org/api/v2/package/wix/$WiXVersion"
-  $WiXHash = "DF9BDB347183716F82EFE2CECB8C54BB3554AA907A69F47A41741D6FA4D0A754"
+  $WiXHash = "A94DD42AE1FB56B32DA180E2173CEDA4F0D10B4C8871C5EE59ECB502131A1EB6"
   DownloadAndVerify $WixURL "$BinaryCache\WiX-$WiXVersion.zip" $WiXHash
   Extract-ZipFile WiX-$WiXVersion.zip $BinaryCache WiX-$WiXVersion