diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a72b24080..4c93b3502 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -2260,7 +2260,7 @@ jobs:
           name: uv-windows-aarch64-${{ github.sha }}
 
       - name: "Validate global Python install"
-        run: py -3.13 ./scripts/check_system_python.py --uv ./uv.exe
+        run: py -3.13-arm64 ./scripts/check_system_python.py --uv ./uv.exe
 
   # Test our PEP 514 integration that installs Python into the Windows registry.
   system-test-windows-registry: