diff --git a/configs/sites/tier1/atlantis/packages_gcc.yaml b/configs/sites/tier1/atlantis/packages_gcc.yaml
index 91118e459..7ce7a5616 100644
--- a/configs/sites/tier1/atlantis/packages_gcc.yaml
+++ b/configs/sites/tier1/atlantis/packages_gcc.yaml
@@ -2,14 +2,14 @@ packages:
   all:
     compiler:: [gcc@13.4.0]
     providers:
-      mpi:: [openmpi@4.1.5]
+      mpi:: [openmpi@4.1.8]
   mpi:
     buildable: False
   openmpi:
     buildable: False
     externals:
-    - spec: openmpi@4.1.5 ~cuda~cxx~cxx_exceptions~java~memchecker+pmi~static~wrapper-rpath fabrics=ucx schedulers=slurm %gcc@=13.4.0
+    - spec: openmpi@4.1.8 %gcc@=13.4.0
       # Note: slurm must be loaded before openmpi on Atlantis
       modules:
       - slurm
-      - openmpi/mlnx/gcc/64/4.1.5a1
+      - openmpi/4.1.8
diff --git a/util/nrl/batch_install.sh b/util/nrl/batch_install.sh
index 33c41d6d0..3e7c1ac64 100755
--- a/util/nrl/batch_install.sh
+++ b/util/nrl/batch_install.sh
@@ -391,6 +391,7 @@ for compiler in "${SPACK_STACK_BATCH_COMPILERS[@]}"; do
             ;;
           gcc@=13.4.0)
             module use /gpfs/neptune/spack-stack/gcc-13.4.0/modulefiles
+            module use /gpfs/neptune/spack-stack/openmpi-4.1.8/gcc-13.4.0/modulefiles
             ;;
         esac
         ;;