diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6bea685779..74c9bb289f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,10 +23,10 @@ jobs:
           - os: macos-10.15
             job: test
             profile: release
-          - os: windows-2019
+          - os: ${{ github.repository == 'denoland/deno' && 'windows-2019-xl' || 'windows-2019' }}
             job: test
             profile: fastci
-          - os: windows-2019
+          - os: ${{ github.repository == 'denoland/deno' && 'windows-2019-xl' || 'windows-2019' }}
             job: test
             profile: release
           - os: ${{ github.repository == 'denoland/deno' && 'ubuntu-20.04-xl' || 'ubuntu-20.04' }}