diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 549fa49a4b..46f3969472 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -6,7 +6,7 @@
         "dockerfile": "Dockerfile",
         "context": "..",
         "args": {
-          "VARIANT": "3.9-buster"
+          "VARIANT": "3.9-bullseye"
         }
     },
     "customizations": {