diff --git a/.github/workflows/main.yaml b/.github/workflows/main.yaml
index 526c08c9..38817378 100644
--- a/.github/workflows/main.yaml
+++ b/.github/workflows/main.yaml
@@ -19,7 +19,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: "3.11"
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip pre-commit
@@ -46,7 +46,7 @@ jobs:
         uses: actions/checkout@v4
       - uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: "3.11"
       - name: Install dependencies
         run: |
           python -m pip install ".[docs]"
@@ -65,7 +65,7 @@ jobs:
       - name: Set up Python
         uses: actions/setup-python@v5
         with:
-          python-version: 3.8
+          python-version: "3.11"
       - name: Install dependencies
         run: |
           python -m pip install --upgrade -e ".[testing]"
diff --git a/Dockerfile b/Dockerfile
index 1bfde560..fa8febae 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # Build container
-FROM python:3.8-slim AS build
+FROM python:3.11-slim AS build
 
 RUN mkdir -pv /src
 
@@ -14,7 +14,7 @@ RUN python -m pip install -U setuptools==70.3.0 && \
 
 
 # Run container
-FROM python:3.8-slim
+FROM python:3.11-slim
 
 LABEL license="Apache License 2.0" \
       maintainer="Crate.IO GmbH <office@crate.io>" \
diff --git a/setup.py b/setup.py
index 3595edd8..44e12dc0 100644
--- a/setup.py
+++ b/setup.py
@@ -85,6 +85,9 @@ def read(path: str) -> str:
         "License :: OSI Approved :: Apache Software License",
         "Programming Language :: Python :: 3",
         "Programming Language :: Python :: 3.8",
+        "Programming Language :: Python :: 3.9",
+        "Programming Language :: Python :: 3.10",
+        "Programming Language :: Python :: 3.11",
     ],
     use_scm_version=True,
 )