diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index e8b00543c8..98143f13d1 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -34,7 +34,7 @@ jobs:
 
     strategy:
       matrix:
-        python-version: ['3.12', '3.13', '3.14']
+        python-version: ['3.12', '3.13', '3.14', '3.15']
         dependency-set: ["minimal", "optional"]
         os: ["ubuntu-latest"]
         include:
@@ -101,7 +101,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.12', "3.14"]
+        python-version: ['3.12', "3.14", "3.15"]
         dependency-set: ["upstream", "min_deps"]
         exclude:
           - python-version: "3.14"
diff --git a/pyproject.toml b/pyproject.toml
index e6323ce2ba..2e0d9f4236 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -69,6 +69,7 @@ classifiers = [
     'Programming Language :: Python :: 3.12',
     'Programming Language :: Python :: 3.13',
     'Programming Language :: Python :: 3.14',
+    'Programming Language :: Python :: 3.15',
 ]
 license = "MIT"
 license-files = ["LICENSE.txt"]
@@ -193,7 +194,7 @@ dependency-groups = ["test"]
 [tool.hatch.envs.test.env-vars]
 
 [[tool.hatch.envs.test.matrix]]
-python = ["3.12", "3.13", "3.14"]
+python = ["3.12", "3.13", "3.14", "3.15"]
 deps = ["minimal", "optional"]
 
 [tool.hatch.envs.test.overrides]