diff --git a/.github/workflows/test_install.yml b/.github/workflows/test_install.yml
index 1217378..8268a5a 100644
--- a/.github/workflows/test_install.yml
+++ b/.github/workflows/test_install.yml
@@ -13,7 +13,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        python-version: [3.9, "3.10", "3.11", "3.12"]
+        python-version: ["3.10", "3.11", "3.12", "3.13"]
 
     steps:
     - uses: actions/checkout@v4
@@ -27,13 +27,13 @@ jobs:
         echo $CONDA/bin >> $GITHUB_PATH
     - name: Install conda and dependencies
       run: |
-        conda install numpy scipy sqlalchemy pip pytest pytest-cov codecov coverage
+        conda install -y -c conda-forge python=${{ matrix.python-version }} "numpy>=2" "scipy>=1.13"
         conda info
         conda list
     - name: Install python library, run tests
       run: |
         cd python
-        pip install .
+        pip install .[all]
         cd tests
         python -m pytest --cov=xraydb --cov-report=xml
     - name: upload coverage report to codecov
diff --git a/python/pyproject.toml b/python/pyproject.toml
index 5b3402f..6ddb83b 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -26,7 +26,7 @@ addopts = "--cov=xraydb --cov-report html"
 [project]
 name = "xraydb"
 version = "4.5.8"
-requires-python = ">= 3.9"
+requires-python = ">= 3.10"
 description = "calculations with XrayDB: reference data for X-ray interactions with matter"
 readme = "README.md"
 authors = [
@@ -39,7 +39,6 @@ classifiers = [
     "Development Status :: 5 - Production/Stable",
     "Intended Audience :: Developers",
     "Operating System :: OS Independent",
-    "Programming Language :: Python :: 3.9",
     "Programming Language :: Python :: 3.10",
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
@@ -48,8 +47,8 @@ classifiers = [
     ]
 
 dependencies = [
-    "numpy>=1.19",
-    "scipy>=1.6",
+    "numpy>=2",
+    "scipy>=1.13",
     "sqlalchemy>=2.0.1",
     "platformdirs",
 ]