diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 905fc9767..79bb69943 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -8,18 +8,18 @@ jobs:
       fail-fast: false
       max-parallel: 20
       matrix:
-        os: [ubuntu-latest, macos-14, windows-latest]
-        python-version: ["3.9", "3.12"]
+        os: [windows-latest, ubuntu-latest, macos-latest]
+        python: ["3.9", "3.10", "3.11", "3.12", "3.13"]
 
     runs-on: ${{ matrix.os }}
 
     steps:
       - uses: actions/checkout@v4
 
-      - name: Set up Python ${{ matrix.python-version }}
+      - name: Set up Python ${{ matrix.python }}
         uses: actions/setup-python@v5
         with:
-          python-version: ${{ matrix.python-version }}
+          python-version: ${{ matrix.python }}
 
       - name: Install dependencies
         run: |
diff --git a/pyproject.toml b/pyproject.toml
index 7fddce0eb..ec3739dee 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -9,7 +9,7 @@ maintainers = [
 ]
 description = "Monty is the missing complement to Python."
 readme = "README.md"
-requires-python = ">=3.9"
+requires-python = ">=3.9,<=3.13"
 classifiers = [
     "Programming Language :: Python :: 3",
     "Development Status :: 4 - Beta",
@@ -20,7 +20,7 @@ classifiers = [
 ]
 dependencies = [
   "ruamel.yaml",
-  "numpy<2.0.0",
+  "numpy",
 ]
 version = "2024.10.21"
 
@@ -43,8 +43,10 @@ json = [
   "orjson>=3.6.1",
   "pandas",
   "pydantic",
-  "pint",
-  "torch",
+  # https://github.com/hgrecco/pint/issues/2065
+  "pint; python_version<'3.13'",
+  # Note: need torch>=2.3.0 for numpy 2 # 719
+  "torch; python_version<'3.13'",  # python 3.13 not supported yet
 ]
 multiprocessing = ["tqdm"]
 optional = ["monty[dev,json,multiprocessing,serialization]"]