diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 684ff2c..bd0adaa 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -24,8 +24,11 @@ jobs:
       matrix:
         version:
           - '1.10'
+          - 'pre'
         os:
           - ubuntu-latest
+          - macos-latest
+          - windows-latest
         arch:
           - x64
     steps: