diff --git a/.github/workflows/publish-to-pypi.yml b/.github/workflows/publish-to-pypi.yml
index 4af5888..a70ebd5 100644
--- a/.github/workflows/publish-to-pypi.yml
+++ b/.github/workflows/publish-to-pypi.yml
@@ -12,7 +12,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v2
         with:
-          python-version: '3.9'
+          python-version: '3.11'
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
diff --git a/.github/workflows/publish-to-test-pypi.yml b/.github/workflows/publish-to-test-pypi.yml
index 3290da5..3809438 100644
--- a/.github/workflows/publish-to-test-pypi.yml
+++ b/.github/workflows/publish-to-test-pypi.yml
@@ -13,7 +13,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v2
         with:
-          python-version: '3.9'
+          python-version: '3.11'
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
diff --git a/Dockerfile b/Dockerfile
index 894e7f3..2e3467e 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.9
+FROM python:3.11
 
 COPY requirements.txt requirements.txt
 
diff --git a/serverless.yml b/serverless.yml
index 62807ec..1e40622 100644
--- a/serverless.yml
+++ b/serverless.yml
@@ -3,7 +3,7 @@ service:
 
 provider:
   name: aws
-  runtime: python3.8
+  runtime: python3.11
   iamRoleStatements:
     # read only ec2, rds
     - Effect: Allow
@@ -96,7 +96,7 @@ functions:
   shelvery:
     handler: shelvery_lambda/lambda_handler.lambda_handler
     name: shelvery
-    runtime: python3.8
+    runtime: python3.11
     timeout: 300
     events:
 
diff --git a/template.yaml b/template.yaml
index f5853f5..315c038 100644
--- a/template.yaml
+++ b/template.yaml
@@ -111,7 +111,7 @@ Resources:
     Properties:
       FunctionName: ShelveryBackups
       Handler: shelvery_lambda/lambda_handler.lambda_handler
-      Runtime: python3.8
+      Runtime: python3.11
       CodeUri: ./lib
       Timeout: 900