diff --git a/.github/workflows/lint.yaml b/.github/workflows/lint.yaml
index e6fa2e71..ad9495f5 100644
--- a/.github/workflows/lint.yaml
+++ b/.github/workflows/lint.yaml
@@ -37,7 +37,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v1
         with:
-          python-version: 3.9
+          python-version: 3.11
 
       - name: Install Python linting dependencies
         run: pip install black flake8
diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 99b38d28..08ab91d0 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -9,10 +9,10 @@ jobs:
       - name: Checkout git commit
         uses: actions/checkout@v1
 
-      - name: Set up Python 3.9
+      - name: Set up Python 3.11
         uses: actions/setup-python@v1
         with:
-          python-version: 3.9
+          python-version: 3.11
 
       - name: Install test runner
         run: python3 -m pip install tox
diff --git a/Dockerfile b/Dockerfile
index 4586c660..6fcf0dac 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -11,7 +11,7 @@ COPY . .
 RUN npm run build
 
 # -----------------------------------------------------------------------------
-FROM python:3.9 as backend
+FROM python:3.11 as backend
 
 RUN mkdir /opt/cosri-patientsearch
 WORKDIR /opt/cosri-patientsearch