diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index e0e2bd9..fd7765f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -48,7 +48,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-22.04]
-        python: ["3.8", "3.9", "3.10", "3.11", "3.12"]
+        python: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13"]
 
     name: Tests on ${{ matrix.python }}
     runs-on: ${{ matrix.os }}
diff --git a/CHANGELOG.md b/CHANGELOG.md
index b686214..1a86a9c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## [Unreleased] - TBD
 
+### Added
+
+- Test jobs for Python 3.13.
+
 ### Fixed
 
 - Properly close file descriptors opened by `harfile`.
diff --git a/pyproject.toml b/pyproject.toml
index 67d2c63..aee126b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -15,6 +15,7 @@ classifiers = [
     "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",
     "Topic :: Software Development :: Testing",
 ]