diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2a8b9cd..6b8c112 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -37,7 +37,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python: ["3.9", "3.10", "3.11", "3.12", "3.13", "3.14"]
+        python: ["3.10", "3.11", "3.12", "3.13", "3.14"]
         os: [ubuntu-latest, windows-latest]
         tox_env: ["py"]
         include:
diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index c94cfa9..d18f6d6 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -5,6 +5,7 @@ Unreleased
 ----------
 
 * `#547 <https://github.com/pytest-dev/pytest-mock/issues/547>`_: Added ``SpyType`` for annotating ``mocker.spy`` results.
+* Dropped support for EOL Python 3.9.
 
 3.15.1
 ------
diff --git a/pyproject.toml b/pyproject.toml
index f00d66e..b4bccea 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,7 +15,7 @@ dependencies = [
     "pytest>=6.2.5",
 ]
 dynamic = ["version"]
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 readme = "README.rst"
 license = {text = "MIT"}
 keywords = ["pytest", "mock"]
@@ -27,7 +27,6 @@ classifiers = [
     "Operating System :: OS Independent",
     "Programming Language :: Python :: 3",
     "Programming Language :: Python :: 3 :: Only",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
diff --git a/tox.ini b/tox.ini
index 20273f7..8cba4ca 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 minversion = 3.5.3
-envlist = py{39,310,311,312,313,314}, norewrite, pytest6
+envlist = py{310,311,312,313,314}, norewrite, pytest6
 
 [testenv]
 deps =