diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index b286a49..f631a68 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -8,7 +8,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ['3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.10', '3.11', '3.12']
     steps:
     - uses: actions/checkout@v3
     - name: Set up Python ${{ matrix.python-version }}
diff --git a/Dockerfile b/Dockerfile
index a4b9378..212c296 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,6 @@
 FROM python:3.11-slim-bullseye
 
-RUN python -m pip install "poetry==1.5.1"
+RUN python -m pip install "poetry==1.6.1"
 
 COPY . /app
 WORKDIR /app
diff --git a/poetry.lock b/poetry.lock
index a5d8871..324c91a 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -33,9 +33,6 @@ files = [
     {file = "annotated_types-0.6.0.tar.gz", hash = "sha256:563339e807e53ffd9c267e99fc6d9ea23eb8443c08f112651963e24e22f84a5d"},
 ]
 
-[package.dependencies]
-typing-extensions = {version = ">=4.0.0", markers = "python_version < \"3.9\""}
-
 [[package]]
 name = "anyio"
 version = "3.7.1"
@@ -1079,7 +1076,6 @@ files = [
 
 [package.dependencies]
 anyio = ">=3.4.0,<5"
-typing-extensions = {version = ">=3.10.0", markers = "python_version < \"3.10\""}
 
 [package.extras]
 full = ["httpx (>=0.22.0)", "itsdangerous", "jinja2", "python-multipart", "pyyaml"]
@@ -1424,5 +1420,5 @@ cffi = ["cffi (>=1.11)"]
 
 [metadata]
 lock-version = "2.0"
-python-versions = "^3.8.1"
-content-hash = "cf40f55f1a254cb270267aa97c0c2389ba3b508c6f2755741978213d236847e3"
+python-versions = "^3.10"
+content-hash = "ac184c5a9e7cd4045d0a145bf6c12cf6b85d7211d62962a2e90c4ccda408e2c7"
diff --git a/pyproject.toml b/pyproject.toml
index 9188f01..28d088b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -6,7 +6,7 @@ authors = ["Christoph Reiter <reiter.christoph@gmail.com>"]
 license = "MIT"
 
 [tool.poetry.dependencies]
-python = "^3.8.1"
+python = "^3.10"
 httpx = {extras = ["http2"], version = "^0.25.0"}
 fastapi = "^0.103.1"
 uvicorn = {extras = ["standard"], version = "^0.23.0"}