diff --git a/.devcontainer/downstream-archlinux-latest/devcontainer.json b/.devcontainer/downstream-archlinux-latest/devcontainer.json
index 93966269922..c1682662873 100644
--- a/.devcontainer/downstream-archlinux-latest/devcontainer.json
+++ b/.devcontainer/downstream-archlinux-latest/devcontainer.json
@@ -2,12 +2,11 @@
 {
     "name": "archlinux:latest downstream Sage",
     "image": "archlinux:latest",
-    // Run commands after the container is created.
     // Create an empty bashrc to avoid the error "No such file or directory" when opening a terminal.
-    "postCreateCommand": "EXTRA_SYSTEM_PACKAGES='sagemath sagemath-doc' EXTRA_SAGE_PACKAGES='notebook pip' .devcontainer/post_create.sh && touch ~/.bashrc",
+    "onCreateCommand": "EXTRA_SYSTEM_PACKAGES='sagemath sagemath-doc' EXTRA_SAGE_PACKAGES='notebook pip' .devcontainer/post_create.sh && touch ~/.bashrc",
     // Run commands after the container is started.
     // There's no SAGE_LOCAL, so remove the symlink 'prefix'.
-    "postStartCommand": "rm -f prefix && ln -sf /usr venv",
+    "updateContentCommand": "rm -f prefix && ln -sf /usr venv",
     "extensions": [
         "ms-python.python"
     ]