diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index db28928..b3207cc 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -57,7 +57,7 @@ jobs:
       - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v2
         with:
-          version: '1.9'
+          version: '1'
       - uses: julia-actions/cache@v2
       - name: Configure doc environment
         shell: julia --project=docs --color=yes {0}