diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 933d9fa..468805d 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -20,6 +20,7 @@ jobs:
           - '3.2'
           - '3.3'
           - '3.4'
+          - '4.0'
 
     steps:
       - uses: actions/checkout@v6