diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 10f060b4..baf75e22 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -10,9 +10,9 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - '1.6'
+          - 'lts'
           - '1'
-          - 'nightly'
+          - 'pre'
         os:
           - ubuntu-latest
         arch: