diff --git a/.github/workflows/weekly.yml b/.github/workflows/weekly.yml
index 0782349..d3f952b 100644
--- a/.github/workflows/weekly.yml
+++ b/.github/workflows/weekly.yml
@@ -23,7 +23,7 @@ jobs:
           - dependencies: black python3-isort
             task: make -f Makefile fmt-travis
     runs-on: ubuntu-latest
-    container: fedora:39  # NEXT DEVELOPMENT ENVIRONMENT
+    container: fedora:40  # NEXT DEVELOPMENT ENVIRONMENT
     steps:
       - uses: actions/checkout@v4
       - name: Install dependencies