diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e6ceefe73..2693b52e9 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [warp-ubuntu-latest-x64-16x, warp-macos-15-arm64-12x, warp-windows-latest-x64-32x]
+        os: [warp-ubuntu-latest-x64-8x, warp-macos-15-arm64-6x, warp-windows-latest-x64-16x]
     env:
       CMAKE_BUILD_TYPE: Release
       CCACHE_DIR: ${{ github.workspace }}/.ccache