diff --git a/.github/workflows/python-tests.yml b/.github/workflows/python-tests.yml
index b222f17..62fa38d 100644
--- a/.github/workflows/python-tests.yml
+++ b/.github/workflows/python-tests.yml
@@ -19,7 +19,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        version: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        version: ["3.9", "3.10", "3.11", "3.12"]
         os: [ubuntu-latest]
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/README.md b/README.md
index 988421f..16347a5 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 # cloudevents-pydantic
-![Static Badge](https://img.shields.io/badge/Python-3.10_%7C_3.11_%7C_3.12-blue?logo=python&logoColor=white)
+![Static Badge](https://img.shields.io/badge/Python-3.9_%7C_3.10_%7C_3.11_%7C_3.12-blue?logo=python&logoColor=white)
 [![Stable Version](https://img.shields.io/pypi/v/cloudevents-pydantic?color=blue)](https://pypi.org/project/cloudevents-pydantic/)
 [![stability-wip](https://img.shields.io/badge/stability-wip-lightgrey.svg)](https://github.com/mkenney/software-guides/blob/master/STABILITY-BADGES.md#work-in-progress)
 
diff --git a/pyproject.toml b/pyproject.toml
index f31a1ee..0e2051c 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -19,7 +19,6 @@ classifiers = [
     "Programming Language :: Python",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.8",
     "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
@@ -39,9 +38,9 @@ build-backend = "poetry_dynamic_versioning.backend"
 ############################
 
 [tool.poetry.dependencies]
-python = ">=3.8,<3.13"
-pydantic = "^2.9.1"
 cloudevents = "^1.11.0"
+python = ">=3.9,<3.13"
+pydantic = "^2.9.1"
 
 [tool.poetry.group.dev]
 optional = true
@@ -85,7 +84,8 @@ exclude_also = [
 
 [tool.mypy]
 files = "cloudevents_pydantic"
-python_version = "3.8"
+python_version = "3.9"
+plugins = "pydantic.mypy"
 
 [tool.pytest.ini_options]
 asyncio_mode = "auto"
@@ -97,7 +97,7 @@ testpaths = [
 
 [tool.ruff]
 extend-exclude = ["docs", ".tox"]
-target-version = "py38"
+target-version = "py39"
 
 [tool.ruff.lint]
 select = [
diff --git a/tox.ini b/tox.ini
index fda9829..a568d4a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -5,7 +5,6 @@ env_list =
     py311
     py310
     py39
-    py38
     typing
     lint
     format