diff --git a/images/ubuntu/scripts/tests/System.Tests.ps1 b/images/ubuntu/scripts/tests/System.Tests.ps1
index 333db232d692..de18d6eaa1f4 100644
--- a/images/ubuntu/scripts/tests/System.Tests.ps1
+++ b/images/ubuntu/scripts/tests/System.Tests.ps1
@@ -1,6 +1,6 @@
 Describe "Disk free space" {
-    It "Image has more than 15GB free space" {
+    It "Image has more than 31GB free space" {
         $freeSpace = (Get-PSDrive "/").Free
-        $freeSpace | Should -BeGreaterOrEqual 15GB
+        $freeSpace | Should -BeGreaterOrEqual 31GB
     }
 }