diff --git a/spack.yaml b/spack.yaml
index 5ba7bc8..80af6f5 100644
--- a/spack.yaml
+++ b/spack.yaml
@@ -4,6 +4,7 @@ spack:
   - intel-mpi@2019.9.304
   - intel-oneapi-mpi@2021.7.0
   # - julia@1.9.2 ^llvm~clang~gold~polly ^openblas threads=openmp +ilp64
+  - mvapich@3.0b
   - mvapich2@2.3.7
   - jq
   concretizer: