diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 50dc0da..b45f6d2 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -33,9 +33,9 @@ jobs:
           # ref: https://discourse.julialang.org/t/why-do-packages-run-continuous-integration-tests-on-julia-nightly/101208/11
           # ref: https://github.com/JuliaData/DataFrames.jl/actions/runs/8622690427/workflow
           - os: ubuntu-latest
-          - version: 'nightly'
-          - arch: x64
-          - allow_failure: true
+            version: 'nightly'
+            arch: x64
+            allow_failure: true
     steps:
       - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v2