diff --git a/.devcontainer-template.json b/.devcontainer-template.json
index 1ac276a..59f2329 100644
--- a/.devcontainer-template.json
+++ b/.devcontainer-template.json
@@ -1,10 +1,12 @@
 /*
   Copy this file to .devcontainer.json
   if using PODMAN, instead of DOCKER, uncomment the runArgs section
+
+  NOTE: 3.12 may not work with debugging yet.
 */
 {
     "name": "sHedC/python-masterthermconnect",
-    "image": "mcr.microsoft.com/devcontainers/python:1-3.13",
+    "image": "mcr.microsoft.com/devcontainers/python:1-3.12",
 	"postCreateCommand": "pip install --upgrade pip && pip install --user -r requirements.txt && python3 -m pip install -e .",
 	"customizations": {
 		"vscode": {
diff --git a/.github/workflows/push-main.yml b/.github/workflows/push-main.yml
index 0a69ac8..3383eb8 100644
--- a/.github/workflows/push-main.yml
+++ b/.github/workflows/push-main.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       matrix:
         os: [macos-latest, windows-latest, ubuntu-latest]
-        python-version: ["3.10", "3.11", "3.12", "3.13.0-alpha.3"]
+        python-version: ["3.10", "3.11", "3.12", "3.13.0-alpha.4"]
 
     steps:
     - uses: actions/checkout@v4