diff --git a/.github/workflows/python.yml b/.github/workflows/python.yml
index 7afcf12b2c71..8acc5c2e5575 100644
--- a/.github/workflows/python.yml
+++ b/.github/workflows/python.yml
@@ -19,10 +19,10 @@ jobs:
     steps:
       - name: Check out Git repository
         uses: actions/checkout@v2
-      - name: Set up Python 3.9
+      - name: Set up Python 3.11
         uses: actions/setup-python@v2
         with:
-          python-version: 3.9
+          python-version: 3.11.2
       - uses: actions/cache@v2
         with:
           path: ~/.cache/pip
diff --git a/pyproject.toml b/pyproject.toml
index 5638d64d0b4d..50ba13b466b8 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.black]
 line-length = 100
-target_version = ['py39']
+target_version = ['py311']
 include = '\.pyi?$'
 
 [tool.ruff]
diff --git a/tox.ini b/tox.ini
index d51139b24fb6..3da6f8538669 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist = py39
+envlist = py311
 
 [testenv]
 deps =