diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 69a210a..1562a60 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -59,7 +59,7 @@ jobs:
         strategy:
             matrix:
                 os: [ubuntu-latest, macos-latest]   # eventually add `windows-latest`
-                python-version: [3.8, 3.9, '3.10']
+                python-version: [3.8, 3.9, '3.10', '3.11']
 
         steps:
         - uses: actions/checkout@v3
@@ -88,7 +88,7 @@ jobs:
 #        - name: Setup Python
 #          uses: actions/setup-python@v4
 #          with:
-#              python-version: 3.8
+#              python-version: "3.10"
 #
 #        - name: Install Dependencies
 #          run: pip install .[test]
diff --git a/README.md b/README.md
index 04bd144..17bc130 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@ Ecosystem Plugin for Polygon support in Ape.
 
 ## Dependencies
 
-- [python3](https://www.python.org/downloads) version 3.8 or greater, python3-dev
+- [python3](https://www.python.org/downloads) version 3.8 up to 3.11.
 
 ## Installation
 
diff --git a/pyproject.toml b/pyproject.toml
index 19b3267..9bf7f07 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,7 +14,7 @@ write_to = "ape_polygon/version.py"
 
 [tool.black]
 line-length = 100
-target-version = ['py38', 'py39', 'py310']
+target-version = ['py38', 'py39', 'py310', 'py311']
 include = '\.pyi?$'
 
 [tool.pytest.ini_options]