diff --git a/.github/requirements-old.txt b/.github/requirements-old.txt
index fd784ba..4f25cef 100644
--- a/.github/requirements-old.txt
+++ b/.github/requirements-old.txt
@@ -1,5 +1,5 @@
 # Ensure changes to these dependencies are reflected in pyproject.toml
-numpy==2.3.1
-scipy==1.16.0
+numpy==2.2.6
+scipy==1.15.3
 matplotlib==3.6.3
 autograd==1.8.0
diff --git a/.github/workflows/pytest.yaml b/.github/workflows/pytest.yaml
index 9ddff18..ef0c8fa 100644
--- a/.github/workflows/pytest.yaml
+++ b/.github/workflows/pytest.yaml
@@ -14,7 +14,7 @@ jobs:
   tests:
     strategy:
       matrix:
-        python-version: ["3.11", "3.12"]
+        python-version: ["3.10", "3.14"]
     runs-on: "ubuntu-latest"
     steps:
       - uses: actions/checkout@v4
@@ -23,7 +23,7 @@ jobs:
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install oldest versions of supported dependencies
-        if: ${{ matrix.python-version == '3.11'}}
+        if: ${{ matrix.python-version == '3.10'}}
         run: pip install -r .github/requirements-old.txt
       - name: Install development version
         run: pip install -e .[dev]
diff --git a/pyproject.toml b/pyproject.toml
index 6a9799b..d12490e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -10,20 +10,26 @@ authors = [
 description = "Minimalistic atomic DFT code."
 readme = "README.md"
 license = "GPL-3.0-or-later"
-requires-python = ">=3.11"
+requires-python = ">=3.10"
 classifiers = [
     "Environment :: Console",
     "Intended Audience :: Education",
     "Operating System :: POSIX",
     "Operating System :: MacOS",
     "Programming Language :: Python :: 3",
+    "Programming Language :: Python :: 3 :: Only",
+    "Programming Language :: Python :: 3.10",
+    "Programming Language :: Python :: 3.11",
+    "Programming Language :: Python :: 3.12",
+    "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
     "Topic :: Scientific/Engineering",
     "Topic :: Education :: Computer Aided Instruction (CAI)",
 ]
 dependencies = [
     # Ensure changes to these dependencies are reflected in .github/requirements-old.txt
-    "numpy>=2.3.1",
-    "scipy>=1.16.0",
+    "numpy>=2.2.6",
+    "scipy>=1.15.3",
     "matplotlib>=3.6.3",
     "autograd>=1.8.0",
 ]
@@ -47,7 +53,7 @@ addopts = "-vv -W error --cov=src/tinydft --cov-report=term-missing -n auto"
 
 [tool.ruff]
 line-length = 100
-target-version = "py311"
+target-version = "py310"
 
 [tool.ruff.lint]
 select = [