diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 2b21b1f..8756cdc 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -18,7 +18,7 @@ jobs:
   linux:
     runs-on: ubuntu-latest
     container:
-      image: swift:5.5
+      image: swift:5.8
     steps:
       - name: Checkout
         uses: actions/checkout@v3