diff --git a/.github/workflows/build-release.yml b/.github/workflows/build-release.yml
index e2b60c36..df420756 100644
--- a/.github/workflows/build-release.yml
+++ b/.github/workflows/build-release.yml
@@ -22,16 +22,16 @@ jobs:
               tox: py39-marshmallow3,
             }
           - {
-              name: "3.12-ma3",
-              python: "3.12",
+              name: "3.13-ma3",
+              python: "3.13",
               os: ubuntu-latest,
-              tox: py312-marshmallow3,
+              tox: py313-marshmallow3,
             }
           - {
-              name: "3.12-madev",
-              python: "3.12",
+              name: "3.13-madev",
+              python: "3.13",
               os: ubuntu-latest,
-              tox: py312-marshmallowdev,
+              tox: py313-marshmallowdev,
             }
     steps:
       - uses: actions/checkout@v4.2.0
@@ -47,7 +47,7 @@ jobs:
       - uses: actions/checkout@v4.2.0
       - uses: actions/setup-python@v5
         with:
-          python-version: "3.11"
+          python-version: "3.13"
       - name: Install pypa/build
         run: python -m pip install build
       - name: Build a binary wheel and a source tarball
@@ -70,7 +70,7 @@ jobs:
       - uses: actions/checkout@v4.2.0
       - uses: actions/setup-python@v5
         with:
-          python-version: "3.11"
+          python-version: "3.13"
       - run: python -m pip install tox
       - run: python -m tox -e lint
   publish-to-pypi:
diff --git a/pyproject.toml b/pyproject.toml
index e38c63bf..081d0c21 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -18,6 +18,7 @@ classifiers = [
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
+  "Programming Language :: Python :: 3.13",
 ]
 keywords = [
   "apispec",
diff --git a/tox.ini b/tox.ini
index 0ec796de..0c5481d3 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,7 +1,7 @@
 [tox]
 envlist=
     lint
-    py{39,310,311,312}-marshmallow3
+    py{39,310,311,312,313}-marshmallow3
     py312-marshmallowdev
     docs