diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ef2f5c091a06a453e5d206242eb7afcc392e116f..9d46d06e01dd147fda13e0159958be115c3bc577 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -69,7 +69,7 @@ jobs:
                 python euler/acoustic_pulse.py --lazy
                 python euler/vortex.py --oi --lazy
 
-                mpirun -n 2 python wave/wave-op-mpi.py --lazy
+                mpiexec -np 2 --oversubscribe python wave/wave-op-mpi.py --lazy
 
     docs:
         name: Documentation