diff --git a/.github/workflows/production-deploy.yml b/.github/workflows/production-deploy.yml
index fe7fb79..fd910ab 100644
--- a/.github/workflows/production-deploy.yml
+++ b/.github/workflows/production-deploy.yml
@@ -16,7 +16,7 @@ on:
         description: 'Branch to release from'
         required: true
         type: string
-        default: 'main'
+        default: 'master'
       seed:
         description: 'Random seed for reproducible sampling (float in [-1.0, 1.0]). Leave blank to auto-generate.'
         required: false
@@ -34,7 +34,7 @@ on:
         default: '5'
 jobs:
   deploy:
-    uses: lambda-feedback/evaluation-function-workflows/.github/workflows/deploy.yml@deploy-request
+    uses: lambda-feedback/evaluation-function-workflows/.github/workflows/deploy.yml@main
     with:
       template-repository-name: 'lambda-feedback/evaluation-function-boilerplate-python'
       build-file: "app/Dockerfile"
@@ -42,7 +42,7 @@ jobs:
       environment: "production"
       version-bump: ${{ inputs.version-bump }}
       branch: ${{ inputs.branch }}
-      run-database-tests: false
+      run-database-tests: true
       seed: ${{ inputs.seed }}
       request_delay: ${{ inputs.request_delay }}
       max_concurrency: ${{ inputs.max_concurrency }}
diff --git a/.github/workflows/staging-deploy.yml b/.github/workflows/staging-deploy.yml
index 686ba3f..caf18f5 100644
--- a/.github/workflows/staging-deploy.yml
+++ b/.github/workflows/staging-deploy.yml
@@ -3,7 +3,7 @@ name: Deploy to Staging
 on:
   push:
     branches:
-      - main
+      - master
   workflow_dispatch:
 
 jobs:
@@ -18,7 +18,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8"]
+        python-version: ["3.12"]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -59,7 +59,7 @@ jobs:
           if-no-files-found: warn
   deploy:
     needs: test
-    uses: lambda-feedback/evaluation-function-workflows/.github/workflows/deploy.yml@deploy-request-on-dev
+    uses: lambda-feedback/evaluation-function-workflows/.github/workflows/deploy.yml@main
     with:
       template-repository-name: "lambda-feedback/evaluation-function-boilerplate-python"
       build-file: "app/Dockerfile"
diff --git a/.github/workflows/test-lint.yml b/.github/workflows/test-lint.yml
index b9d4bce..0f1e91d 100644
--- a/.github/workflows/test-lint.yml
+++ b/.github/workflows/test-lint.yml
@@ -15,7 +15,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.8"]
+        python-version: ["3.12"]
     steps:
       - name: Checkout
         uses: actions/checkout@v4
diff --git a/app/Dockerfile b/app/Dockerfile
index b1d9165..d3b1373 100644
--- a/app/Dockerfile
+++ b/app/Dockerfile
@@ -1,13 +1,20 @@
-# Base image that bundles AWS Lambda Python 3.8 image with some middleware functions
-# FROM base-eval-tmp
-FROM ghcr.io/lambda-feedback/baseevalutionfunctionlayer:main-3.8
+# Base image that bundles the AWS Lambda Python image with the lambda-feedback middleware (app.handler)
+FROM ghcr.io/lambda-feedback/baseevalutionfunctionlayer:main-3.12
+
+# The 3.12 image is Amazon Linux 2023, which doesn't ship `find` (used below)
+RUN dnf install -y findutils && dnf clean all
 
 WORKDIR /app
 
+ENV PYTHONPATH=/app
+
 # Copy and install any packages/modules needed for your evaluation script.
 COPY requirements.txt .
 RUN pip3 install -r requirements.txt
 
+# The healthcheck command runs the pytest suite
+RUN pip3 install pytest
+
 # Copy the evaluation and testing scripts
 COPY evaluation.py ./app/
 COPY evaluation_tests.py ./app/
@@ -20,5 +27,6 @@ COPY docs/user.md ./app/docs/user.md
 RUN chmod 644 $(find . -type f)
 RUN chmod 755 $(find . -type d)
 
-# The entrypoint for AWS is to invoke the handler function within the app package
-CMD [ "/app/app.handler" ]
+# The entrypoint for AWS is to invoke the handler function within the app package.
+# Python 3.12's Lambda runtime imports this as a module name, so it can't be a path.
+CMD [ "app.handler" ]
diff --git a/app/requirements.txt b/app/requirements.txt
index 74d1c6b..bd4f455 100755
--- a/app/requirements.txt
+++ b/app/requirements.txt
@@ -1,2 +1,2 @@
-numpy==1.21.2
-evaluation-function-utils
\ No newline at end of file
+numpy>=1.26
+evaluation-function-utils
diff --git a/pytest.ini b/pytest.ini
new file mode 100644
index 0000000..589497f
--- /dev/null
+++ b/pytest.ini
@@ -0,0 +1,4 @@
+[pytest]
+# evaluation_tests.py is the name the base layer's healthcheck imports, so
+# include it alongside pytest's default patterns.
+python_files = test_*.py *_test.py *_tests.py
diff --git a/readme.md b/readme.md
index a3cf100..43dd62d 100644
--- a/readme.md
+++ b/readme.md
@@ -170,7 +170,7 @@ Three automated pipelines are configured under `.github/workflows/`:
 
 To develop locally you will need:
 
-- Python 3.8 or higher
+- Python 3.12 or higher
 - `git` CLI or GitHub Desktop
 - A code editor (VS Code, PyCharm, etc.)
 - Docker (optional — only needed to build/test the image locally)