diff --git a/.github/workflows/test.yaml b/.github/workflows/test.yaml
index 7492e79e2..5f72d0990 100644
--- a/.github/workflows/test.yaml
+++ b/.github/workflows/test.yaml
@@ -7,7 +7,6 @@ jobs:
       matrix:
         os: ['ubuntu-latest']
         python-version:
-          - '3.9'
           - '3.10'
           - '3.11'
           - '3.12'
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index f8376ab41..366364d76 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -19,5 +19,5 @@ repos:
     rev: 75992aaa40730136014f34227e0135f63fc951b4  # frozen: v3.21.2
     hooks:
       - id: pyupgrade
-        name: "Enforce Python 3.9+ idioms"
-        args: ["--py39-plus"]
+        name: "Enforce Python 3.10+ idioms"
+        args: ["--py310-plus"]
diff --git a/CHANGES.rst b/CHANGES.rst
index dfb8f5604..8e6bfb506 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -6,6 +6,7 @@ Here you can see the full list of changes between each SQLAlchemy-Utils release.
 Unreleased
 ^^^^^^^^^^
 
+- Drop support for Python 3.9.
 - Support Python 3.14.
 - Fix ``ChoiceType`` returning the raw scalar instead of a ``Choice`` for falsy codes such as ``0`` or the empty string. (#813)
 
diff --git a/docs/installation.rst b/docs/installation.rst
index a2b1cce6c..2ef1f771b 100644
--- a/docs/installation.rst
+++ b/docs/installation.rst
@@ -6,12 +6,7 @@ This part of the documentation covers the installation of SQLAlchemy-Utils.
 Supported platforms
 -------------------
 
-SQLAlchemy-Utils is currently tested against the following Python platforms:
-
-- CPython 3.9
-- CPython 3.10
-- CPython 3.11
-- CPython 3.12
+SQLAlchemy-Utils is tested against supported CPython versions.
 
 
 Installing an official release
diff --git a/pyproject.toml b/pyproject.toml
index ce0c94eba..b0fecdc54 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,13 +14,12 @@ authors = [
     {name = "Janne Vanhala"},
     {name = "Vesa Uimonen"}
 ]
-requires-python = ">=3.9"
+requires-python = ">=3.10"
 classifiers = [
     "Environment :: Web Environment",
     "Intended Audience :: Developers",
     "Operating System :: OS Independent",
     "Programming Language :: Python",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
diff --git a/requirements/docs/pyproject.toml b/requirements/docs/pyproject.toml
index 1df8cb6a7..93316f30f 100644
--- a/requirements/docs/pyproject.toml
+++ b/requirements/docs/pyproject.toml
@@ -2,6 +2,6 @@
 package-mode = false
 
 [tool.poetry.dependencies]
-python = ">=3.9"
+python = ">=3.10"
 sphinx = "*"
 sphinx-rtd-theme = "*"
diff --git a/requirements/docs/requirements.txt b/requirements/docs/requirements.txt
index 580487791..732091a65 100644
--- a/requirements/docs/requirements.txt
+++ b/requirements/docs/requirements.txt
@@ -1,27 +1,25 @@
-alabaster==0.7.16 ; python_version >= "3.9"
-babel==2.17.0 ; python_version >= "3.9"
-certifi==2025.7.9 ; python_version >= "3.9"
-charset-normalizer==3.4.2 ; python_version >= "3.9"
-colorama==0.4.6 ; python_version >= "3.9" and sys_platform == "win32"
-docutils==0.21.2 ; python_version >= "3.9"
-idna==3.15 ; python_version >= "3.9"
-imagesize==1.4.1 ; python_version >= "3.9"
-importlib-metadata==8.7.0 ; python_version == "3.9"
-jinja2==3.1.6 ; python_version >= "3.9"
-markupsafe==3.0.2 ; python_version >= "3.9"
-packaging==25.0 ; python_version >= "3.9"
-pygments==2.19.2 ; python_version >= "3.9"
-requests==2.33.0 ; python_version >= "3.9"
-snowballstemmer==3.0.1 ; python_version >= "3.9"
-sphinx-rtd-theme==3.0.2 ; python_version >= "3.9"
-sphinx==7.4.7 ; python_version >= "3.9"
-sphinxcontrib-applehelp==2.0.0 ; python_version >= "3.9"
-sphinxcontrib-devhelp==2.0.0 ; python_version >= "3.9"
-sphinxcontrib-htmlhelp==2.1.0 ; python_version >= "3.9"
-sphinxcontrib-jquery==4.1 ; python_version >= "3.9"
-sphinxcontrib-jsmath==1.0.1 ; python_version >= "3.9"
-sphinxcontrib-qthelp==2.0.0 ; python_version >= "3.9"
-sphinxcontrib-serializinghtml==2.0.0 ; python_version >= "3.9"
-tomli==2.2.1 ; python_version >= "3.9" and python_version < "3.11"
-urllib3==2.7.0 ; python_version >= "3.9"
-zipp==3.23.0 ; python_version == "3.9"
+alabaster==1.0.0 ; python_version >= "3.10"
+babel==2.18.0 ; python_version >= "3.10"
+certifi==2026.6.17 ; python_version >= "3.10"
+charset-normalizer==3.4.9 ; python_version >= "3.10"
+colorama==0.4.6 ; python_version >= "3.10" and sys_platform == "win32"
+docutils==0.21.2 ; python_version >= "3.10"
+idna==3.18 ; python_version >= "3.10"
+imagesize==1.5.0 ; python_version >= "3.10"
+jinja2==3.1.6 ; python_version >= "3.10"
+markupsafe==3.0.3 ; python_version >= "3.10"
+packaging==26.2 ; python_version >= "3.10"
+pygments==2.20.0 ; python_version >= "3.10"
+requests==2.34.2 ; python_version >= "3.10"
+snowballstemmer==3.1.1 ; python_version >= "3.10"
+sphinx-rtd-theme==3.1.0 ; python_version >= "3.10"
+sphinx==8.1.3 ; python_version >= "3.10"
+sphinxcontrib-applehelp==2.0.0 ; python_version >= "3.10"
+sphinxcontrib-devhelp==2.0.0 ; python_version >= "3.10"
+sphinxcontrib-htmlhelp==2.1.0 ; python_version >= "3.10"
+sphinxcontrib-jquery==4.1 ; python_version >= "3.10"
+sphinxcontrib-jsmath==1.0.1 ; python_version >= "3.10"
+sphinxcontrib-qthelp==2.0.0 ; python_version >= "3.10"
+sphinxcontrib-serializinghtml==2.0.0 ; python_version >= "3.10"
+tomli==2.4.1 ; python_version == "3.10"
+urllib3==2.7.0 ; python_version >= "3.10"
diff --git a/tox.ini b/tox.ini
index a2c1d3567..ff06d92a7 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,6 +1,6 @@
 [tox]
 envlist =
-    py{3.9, 3.10, 3.11, 3.12, 3.13, 3.14}-sqlalchemy{14, 2}
+    py{3.10, 3.11, 3.12, 3.13, 3.14}-sqlalchemy{14, 2}
     ruff
     docs
 labels =