diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 44beca66..5d236fee 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -242,6 +242,7 @@ jobs:
       matrix:
         include:
           - swift-version: "6.2"
+          - swift-version: "nightly-6.3"
           - swift-version: nightly-main
 
     steps: