diff --git a/.github/workflows/ci_versions.yml b/.github/workflows/ci_versions.yml
index 42de60b..21c8a6e 100644
--- a/.github/workflows/ci_versions.yml
+++ b/.github/workflows/ci_versions.yml
@@ -17,7 +17,7 @@ jobs:
         runs-on: [ubuntu-latest, macos-latest, ubuntu-24.04 ]
         exclude:
           - runs-on: macos-latest
-            python-version: "3.9"
+            python-version: ["3.9"]
 
     steps:
     - uses: actions/checkout@v4
@@ -50,4 +50,4 @@ jobs:
       run: |
         omv list -V # list installed engines
         env
-        pip list
\ No newline at end of file
+        pip list
diff --git a/README.md b/README.md
index f7c0542..eb6aa24 100644
--- a/README.md
+++ b/README.md
@@ -157,3 +157,4 @@ Since you can run the validation with different [engines](https://github.com/Ope
 ### Running tests automatically on GitHub Actions
 
 To use OMV with GHA, copy an existing configuration file, e.g. https://github.com/OpenSourceBrain/ACnet2/blob/master/.github/workflows/omv-ci.yml and place it in the required repository.
+
diff --git a/setup.cfg b/setup.cfg
index a8e8a40..25a2dd5 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -13,18 +13,17 @@ classifiers=
     License :: OSI Approved :: GNU Lesser General Public License v3 (LGPLv3)
     Natural Language :: English
     Operating System :: OS Independent
-    Programming Language :: Python :: 3.7
-    Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
     Programming Language :: Python :: 3.11
     Programming Language :: Python :: 3.12
+    Programming Language :: Python :: 3.13
     Topic :: Scientific/Engineering
 
 [options]
 install_requires =
     PyYAML
-    numpy<2.0.0  # Due to other packages (e.g. tables) not working yet with numpy v2
+    numpy
     pyrx
     pathlib; python_version<'3.4'
     docopt