diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index eb866d85..96379e39 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -219,7 +219,7 @@ jobs:
         with:
           target: ${{ matrix.target }}
           manylinux: ${{ matrix.manylinux || 'auto' }}
-          args: --release --out dist --interpreter ${{ matrix.interpreter || '3.8 3.9 3.10 3.11 3.12' }}
+          args: --release --out dist --interpreter ${{ matrix.interpreter || '3.8 3.9 3.10 3.11 3.12 3.13' }}
 
       - name: build pypy wheels
         if: ${{ matrix.pypy }}
diff --git a/README.md b/README.md
index c511e724..4108d47a 100644
--- a/README.md
+++ b/README.md
@@ -23,7 +23,7 @@ see [the migration guide](https://watchfiles.helpmanual.io/migrating/) for more
 
 ## Installation
 
-**watchfiles** requires Python 3.8 - 3.12.
+**watchfiles** requires Python 3.8 - 3.13.
 
 ```bash
 pip install watchfiles
diff --git a/pyproject.toml b/pyproject.toml
index 96775fa1..dc41b21e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -23,6 +23,7 @@ classifiers = [
     'Programming Language :: Python :: 3.10',
     'Programming Language :: Python :: 3.11',
     'Programming Language :: Python :: 3.12',
+    'Programming Language :: Python :: 3.13',
     'Intended Audience :: Developers',
     'Intended Audience :: Information Technology',
     'Intended Audience :: System Administrators',