diff --git a/.github/workflows/pr_check.yml b/.github/workflows/pr_check.yml
index 47238ba6..5dec6a48 100644
--- a/.github/workflows/pr_check.yml
+++ b/.github/workflows/pr_check.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-22.04
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12']
+        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11', '3.12', '3.13']
     steps:
       - uses: actions/checkout@master
       - name: Set up Python ${{ matrix.python-version }}
diff --git a/pyproject.toml b/pyproject.toml
index 77f40e59..e4d3baf9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -22,6 +22,7 @@ classifiers = [
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
 ]
 requires-python = ">=3.7.0"
 dependencies = ["lark>=1,<2"]
diff --git a/tox.ini b/tox.ini
index 6c4f1b63..ed675272 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist={py37}-unit,{py38}-unit,{py39}-unit,{py310}-unit,{py311}-unit,{py312}-unit
+envlist={py37}-unit,{py38}-unit,{py39}-unit,{py310}-unit,{py311}-unit,{py312}-unit,{py313}-unit
 skipsdist=true
 
 [gh-actions]
@@ -10,6 +10,7 @@ python =
     3.10: py310-unit
     3.11: py311-unit
     3.12: py312-unit
+    3.13: py313-unit
 
 [testenv]
 commands =