diff --git a/.github/workflows/test_mpi.yml b/.github/workflows/test_mpi.yml
index 3e8fec863bc..9f04178ddf8 100644
--- a/.github/workflows/test_mpi.yml
+++ b/.github/workflows/test_mpi.yml
@@ -75,6 +75,5 @@ jobs:
         which python
         python --version
         echo "*** Attempting install ***"
-        conda install --update-deps -y impi_rt
-        conda install --update-deps -y mpi4py
+        conda install --update-deps -y mpich mpi4py