diff --git a/pySDC/projects/parallelSDC_reloaded/environment.yml b/pySDC/projects/parallelSDC_reloaded/environment.yml
index 5202baed8c..c3ab643ada 100644
--- a/pySDC/projects/parallelSDC_reloaded/environment.yml
+++ b/pySDC/projects/parallelSDC_reloaded/environment.yml
@@ -9,6 +9,8 @@ dependencies:
   - matplotlib>=3.0
   - dill>=0.2.6
   - scipy>=0.17.1
+  - mpich
+  - mpi4py>=3.0.0
   - pip
   - pip:
     - qmat>=0.1.8