diff --git a/configs/sites/hera/compilers.yaml b/configs/sites/hera/compilers.yaml
index 6f8f2fb05..8150d7afc 100644
--- a/configs/sites/hera/compilers.yaml
+++ b/configs/sites/hera/compilers.yaml
@@ -7,7 +7,7 @@ compilers:
       f77: /apps/oneapi/compiler/2022.0.2/linux/bin/intel64/ifort
       fc: /apps/oneapi/compiler/2022.0.2/linux/bin/intel64/ifort
     flags: {}
-    operating_system: centos7
+    operating_system: rocky8
     modules:
     - intel/2022.1.2
     environment:
@@ -24,7 +24,7 @@ compilers:
       f77: /apps/intel/parallel_studio_xe_2018.4.057/compilers_and_libraries_2018/linux/bin/intel64/ifort
       fc: /apps/intel/parallel_studio_xe_2018.4.057/compilers_and_libraries_2018/linux/bin/intel64/ifort
     flags: {}
-    operating_system: centos7
+    operating_system: rocky8
     modules:
     - intel/18.0.5.274
 - compiler:
@@ -35,7 +35,7 @@ compilers:
       f77: /apps/gnu/gcc-9.2.0/bin/gfortran
       fc:  /apps/gnu/gcc-9.2.0/bin/gfortran
     flags: {}
-    operating_system: centos7
+    operating_system: rocky8
     modules:
     - gnu/9.2.0
     environment: {}
diff --git a/configs/sites/hera/packages.yaml b/configs/sites/hera/packages.yaml
index 95c8e4e42..a1a0b3817 100644
--- a/configs/sites/hera/packages.yaml
+++ b/configs/sites/hera/packages.yaml
@@ -3,7 +3,7 @@ packages:
     compiler:: [intel@2021.5.0, gcc@9.2.0]
     #compiler:: [intel@18.0.5.274]
     providers:
-      mpi:: [intel-oneapi-mpi@2021.5.1, openmpi@4.1.5]
+      mpi:: [intel-oneapi-mpi@2021.5.1, openmpi@4.1.6]
       #mpi:: [intel-mpi@2018.0.4]
     # To support hecflow01
     target: [haswell]
@@ -22,11 +22,14 @@ packages:
       prefix: /apps/oneapi
   openmpi:
     externals:
-    - spec: openmpi@4.1.5~cuda~cxx~cxx_exceptions~java+lustre~memchecker+pmi~static~wrapper-rpath schedulers=slurm
-      prefix: /scratch1/NCEPDEV/jcsda/jedipara/spack-stack/openmpi-4.1.5
+    - spec: openmpi@4.1.6~atomics~cuda~cxx~cxx_exceptions~gpfs~internal-hwloc~internal-libevent~internal-pmix~java+legacylaunchers~lustre~memchecker~openshmem~orterunprefix+pmi+romio+rsh~singularity+static+vt+wrapper-rpath fabrics=ucx schedulers=slurm
       modules:
       - gnu/9.2.0
-      - openmpi/4.1.5
+      - openmpi/4.1.6_gnu9.2.0
+  zlib-ng:
+    require:
+      - any_of: ['~shared']
+        when: "%intel"
 
 ### All other external packages listed alphabetically
   autoconf:
diff --git a/spack b/spack
index 9fa8fc54d..98226920e 160000
--- a/spack
+++ b/spack
@@ -1 +1 @@
-Subproject commit 9fa8fc54dd47d416cb618bfff62a803db87eacfa
+Subproject commit 98226920e767e329dd100f7f45a49046de5a7f75