diff --git a/pySDC/projects/Monodomain/etc/environment-monodomain.yml b/pySDC/projects/Monodomain/etc/environment-monodomain.yml
index 281fcc019f..979a56f241 100644
--- a/pySDC/projects/Monodomain/etc/environment-monodomain.yml
+++ b/pySDC/projects/Monodomain/etc/environment-monodomain.yml
@@ -17,7 +17,7 @@ dependencies:
   - pytest-order
   - coverage[toml]
   - sphinx
-  - numdifftools
+  - numdifftools>=0.9.41
   - pybind11
   - mpi4py
   - mpich