diff --git a/.github/workflows/cicd.yml b/.github/workflows/cicd.yml
index 9762d018..0bc5eb87 100644
--- a/.github/workflows/cicd.yml
+++ b/.github/workflows/cicd.yml
@@ -193,27 +193,26 @@ jobs:
     strategy:
       matrix:
         os: ["ubuntu-latest"]
-        python-version: ["3.7", "3.9", "3.10", "3.11"]
+        python-version: ["3.9", "3.10", "3.11"]
         twisted-version: ["21.2", "22.1", "23.8"]
         tox-prefix: ["coverage"]
         optional: [false]
         include:
           - os: "ubuntu-latest"
-            python-version: "pypy-3.8"
+            python-version: "pypy-3.9"
             twisted-version: "23.8"
             tox-prefix: "test"
             optional: false
           - os: "ubuntu-latest"
-            python-version: "pypy-3.9"
+            python-version: "3.12.0"
             twisted-version: "23.8"
             tox-prefix: "test"
             optional: false
-          # Test Python 3.12 but allow it to fail
           - os: "ubuntu-latest"
-            python-version: "3.12.0"
-            twisted-version: "23.8"
+            python-version: "3.13.0"
+            twisted-version: "24.10"
             tox-prefix: "test"
-            optional: true
+            optional: false
 
     steps:
 
diff --git a/requirements/tox-pin-base.txt b/requirements/tox-pin-base.txt
index e73c3339..b672ca48 100644
--- a/requirements/tox-pin-base.txt
+++ b/requirements/tox-pin-base.txt
@@ -1,5 +1,6 @@
 attrs==24.2.0
-Automat==22.10.0
+Automat==22.10.0; python_version < '3.13'
+Automat==24.8.1; python_version >= '3.13'
 characteristic==14.3.0
 constantly==15.1.0
 hyperlink==21.0.0
@@ -10,4 +11,5 @@ six==1.16.0
 Tubes==0.2.1
 Werkzeug==3.0.1; python_version > '3.7'
 Werkzeug==2.1.2; python_version <= '3.7'
-zope.interface==6.2
+zope.interface==6.2; python_version < '3.13'
+zope.interface==7.0.3; python_version >= '3.13'
diff --git a/requirements/tox-tests.txt b/requirements/tox-tests.txt
index 06fb23aa..8bebefe0 100644
--- a/requirements/tox-tests.txt
+++ b/requirements/tox-tests.txt
@@ -1,2 +1,3 @@
 idna==3.6
-treq==22.2.0
+treq==22.2.0; python_version < '3.13'
+treq==24.9.1; python_version >= '3.13'
diff --git a/setup.py b/setup.py
index deeab3bd..5348d138 100644
--- a/setup.py
+++ b/setup.py
@@ -12,11 +12,11 @@
             "License :: OSI Approved :: MIT License",
             "Operating System :: OS Independent",
             "Programming Language :: Python",
-            "Programming Language :: Python :: 3.7",
-            "Programming Language :: Python :: 3.8",
             "Programming Language :: Python :: 3.9",
             "Programming Language :: Python :: 3.10",
             "Programming Language :: Python :: 3.11",
+            "Programming Language :: Python :: 3.12",
+            "Programming Language :: Python :: 3.13",
             "Programming Language :: Python :: Implementation :: CPython",
             "Programming Language :: Python :: Implementation :: PyPy",
             "Topic :: Internet :: WWW/HTTP :: Dynamic Content",
@@ -25,7 +25,7 @@
         description="werkzeug + twisted.web",
         long_description=long_description,
         long_description_content_type="text/x-rst",
-        python_requires=">=3.7",
+        python_requires=">=3.9",
         setup_requires=["incremental"],
         use_incremental=True,
         install_requires=[
diff --git a/tox.ini b/tox.ini
index 29d1b90c..35537985 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,8 +2,7 @@
 
 envlist =
     lint, mypy
-    coverage-py{38,39,310,311,312,py3}-tw{212,221,238,trunk}
-    coverage-py37-tw{212,221,238}
+    coverage-py{39,310,311,312,313,py3}-tw{212,221,238,2410,trunk}
     coverage_report
     docs, docs-linkcheck
     packaging
@@ -18,6 +17,8 @@ basepython = python3.11
 deps =
     tw212: Twisted==21.2.0
     tw221: Twisted==22.1.0
+    tw238: Twisted==23.8.0
+    tw2410: Twisted==24.10.0
     twcurrent: Twisted
     # See https://github.com/twisted/klein/issues/486
     twtrunk: --use-deprecated=legacy-resolver
@@ -51,6 +52,7 @@ basepython =
     py310: python3.10
     py311: python3.11
     py312: python3.12
+    py313: python3.13
     pypy3: pypy3
     pypy38: pypy3.8
     pypy39: pypy3.9