diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index b3687de..3c09a31 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -15,6 +15,7 @@ jobs:
         version:
           - '1'
           - 'nightly'
+          - 'pre'
         os:
           - ubuntu-latest
           - macOS-latest