diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index c43fdfc..0e2b08f 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -27,7 +27,7 @@ jobs:
           # - windows-latest
         arch:
           - x86
-          - x86_64
+          - x64
     steps:
       - uses: actions/checkout@v2
       - uses: julia-actions/setup-julia@v1