diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 384a02a31..886724bd2 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -25,6 +25,7 @@ jobs:
         version:
           - '1.3'
           - '1'
+          - pre
         os:
           - ubuntu-latest
           - macos-latest