diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 427ae461..0232190d 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -25,7 +25,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: [ ubuntu, macos ]
+        os: [ ubuntu, macos, windows ]
         python-version: [ "3.8", "3.12" ]
 
         # pytest-split handles dividing the tests into n groups indexed 1...n.
@@ -76,6 +76,8 @@ jobs:
             pytest-split-group-size: 3
           - os: macos
             pytest-split-group-size: 3
+          - os: windows
+            pytest-split-group-size: 10
 
     defaults:
       run: