diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index dfc667d..c6be283 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -1,6 +1,6 @@
 {
     "name": "TitleCreator Development Environment",
-    "image": "mcr.microsoft.com/devcontainers/python:3.9",
+    "image": "mcr.microsoft.com/devcontainers/python:3.12",
     
     "features": {
         "ghcr.io/devcontainers/features/docker-in-docker:2": {},
diff --git a/CODESPACES.md b/CODESPACES.md
index 68e201c..8abba86 100644
--- a/CODESPACES.md
+++ b/CODESPACES.md
@@ -10,7 +10,7 @@ This repository is configured with a pre-built GitHub Codespaces environment tha
    - Wait for the environment to build (first time takes ~3-5 minutes)
 
 2. **Environment will include**:
-   - ✅ Python 3.9 with Flask and dependencies
+   - ✅ Python 3.12 with Flask and dependencies
    - ✅ Docker and Docker Compose
    - ✅ Google Cloud CLI (`gcloud`)
    - ✅ GitHub CLI (`gh`)
diff --git a/Dockerfile b/Dockerfile
index 28a3d6e..61de2e0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Use an official Python 3 slim base image
-FROM python:3.9-slim
+FROM python:3.12-slim
 
 # Set the working directory in the container
 WORKDIR /app
diff --git a/README.md b/README.md
index b5a2c4f..717b6b8 100755
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ Inspired by a salesperson who would always introduce me with a new title on ever
 ## Instructions to run locally:
 Enter this in the command line:
 
-`Python TitleCreator.py` or `./TitleCreator.py` on Linux/BSD/macOS.
+`python3 titlecreator.py` or `./titlecreator.py` on Linux/BSD/macOS.
 
 ^ You did it! You have a new title! Add it to your Linkedin.
 
diff --git a/app.yaml b/app.yaml
index 0e56bb3..5990e73 100755
--- a/app.yaml
+++ b/app.yaml
@@ -1,4 +1,4 @@
-runtime: python27
+runtime: python312
 api_version: 1
 threadsafe: false
 handlers:
diff --git a/requirements.txt b/requirements.txt
index f2a93f9..00d7a19 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,2 +1,2 @@
-flask==2.3.3
-gunicorn==23.0.0 
\ No newline at end of file
+flask==3.0.2
+gunicorn==21.2.0 
\ No newline at end of file