diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 7f5d725..b1d7c3f 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -9,7 +9,7 @@ jobs:
       matrix:
         os:
           - ubuntu-latest
-          - macos-latest
+          - macos-14
           # Disabling Windows tests as it's known to not work:
           # https://github.com/SciML/diffeqpy/pull/86#issuecomment-1011675735
           # - windows-latest
diff --git a/tox.ini b/tox.ini
index 15ff79a..22e358a 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,7 +3,7 @@ deps =
     pytest
     pytest-cov
 commands =
-    python -c 'from diffeqpy import de'
+    python -c 'import diffeqpy'
     py.test \
         --pyargs diffeqpy \
         {posargs}