diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 4ab4379..a7622c5 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -14,7 +14,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14"]
+        python-version: ["3.10", "3.11", "3.12", "3.13", "3.14", "3.15"]
         os: [windows-latest, macos-latest, ubuntu-latest]
 
     steps:
diff --git a/pyproject.toml b/pyproject.toml
index b987f5a..adcc37f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,6 +22,7 @@ classifiers = [
   "Programming Language :: Python :: 3.12",
   "Programming Language :: Python :: 3.13",
   "Programming Language :: Python :: 3.14",
+  "Programming Language :: Python :: 3.15",
 ]
 dynamic = [ "version" ]
 dependencies = [
@@ -76,4 +77,4 @@ lint.ignore = [
 lint.isort.required-imports = [ "from __future__ import annotations" ]
 
 [tool.pyproject-fmt]
-max_supported_python = "3.14"
+max_supported_python = "3.15"
diff --git a/tox.ini b/tox.ini
index 8f2084f..7dee68c 100644
--- a/tox.ini
+++ b/tox.ini
@@ -2,7 +2,7 @@
 requires =
     tox>=4.2
 env_list =
-    py{313, 312, 311, 310}
+    py{315, 314, 313, 312, 311, 310}
 
 [testenv]
 extras =