diff --git a/.github/.devcontainer/quarto-computing-dependencies/devcontainer-feature.json b/.github/.devcontainer/quarto-computing-dependencies/devcontainer-feature.json
index 0c91add..f2f8dfb 100644
--- a/.github/.devcontainer/quarto-computing-dependencies/devcontainer-feature.json
+++ b/.github/.devcontainer/quarto-computing-dependencies/devcontainer-feature.json
@@ -29,7 +29,7 @@
       "installRMarkdown": "false"
     },
     "ghcr.io/devcontainers/features/python:1": {
-      "version": "latest",
+      "version": "3.13.9",
       "enableShared": "true"
     },
     "ghcr.io/julialang/devcontainer-features/julia:1": {
diff --git a/.github/.devcontainer/tinytex/install.sh b/.github/.devcontainer/tinytex/install.sh
index 19389c5..6e78242 100644
--- a/.github/.devcontainer/tinytex/install.sh
+++ b/.github/.devcontainer/tinytex/install.sh
@@ -55,6 +55,7 @@ install_tinytex() {
   # su "${USERNAME}" -c 'quarto install tinytex --quiet'
   check_packages curl ca-certificates
   export TINYTEX_DIR="/opt/tinytex"
+  mkdir -p "${TINYTEX_DIR}"
   curl -sL "https://yihui.org/tinytex/install-bin-unix.sh" | sh
   echo "TinyTeX installation complete."
   ln -s "${TINYTEX_DIR}/.TinyTeX" "${HOME}/.TinyTeX"