diff --git a/eng/scripts/build.ps1 b/eng/scripts/build.ps1
index 50dade7b77be..c3f95ada7ea7 100644
--- a/eng/scripts/build.ps1
+++ b/eng/scripts/build.ps1
@@ -26,7 +26,7 @@ function Process-Sdk () {
             $removeAutorestFile = $true
         }
 
-        $autorestVersion = "@autorest/go@4.0.0-preview.25"
+        $autorestVersion = "@autorest/go@4.0.0-preview.27"
         if ($outputFolder -eq '') {
             $outputFolder = $currentDirectory
         }