diff --git a/modulefiles/hera.gnu-run.lua b/modulefiles/hera.gnu-run.lua
index 46fabe4..fa91dea 100644
--- a/modulefiles/hera.gnu-run.lua
+++ b/modulefiles/hera.gnu-run.lua
@@ -6,7 +6,8 @@ prepend_path("MODULEPATH", "/scratch1/NCEPDEV/nems/role.epic/spack-stack/spack-s
 local stack_gnu_ver=os.getenv("stack_gnu_ver") or "9.2.0"
 local stack_openmpi_ver=os.getenv("stack_openmpi_ver") or "4.1.5"
 local prod_util_ver=os.getenv("prod_util_ver") or "2.1.1"
-local grads_ver=os.getenv("grads_ver") or "2.2.1"
+local grads_ver=os.getenv("grads_ver") or "2.2.3"
+local perl_ver=os.getenv("perl_ver") or "5.38.0"
 
 load(pathJoin("stack-gcc", stack_gnu_ver))
 load(pathJoin("stack-openmpi", stack_openmpi_ver))
diff --git a/modulefiles/hera.intel-run.lua b/modulefiles/hera.intel-run.lua
index c75029b..295032b 100644
--- a/modulefiles/hera.intel-run.lua
+++ b/modulefiles/hera.intel-run.lua
@@ -5,7 +5,8 @@ prepend_path("MODULEPATH", "/scratch1/NCEPDEV/nems/role.epic/spack-stack/spack-s
 
 local stack_intel_ver=os.getenv("stack_intel_ver") or "2021.5.0"
 local stack_impi_ver=os.getenv("stack_impi_ver") or "2021.5.1"
-local grads_ver=os.getenv("grads_ver") or "2.2.1"
+local grads_ver=os.getenv("grads_ver") or "2.2.3"
+local perl_ver=os.getenv("perl_ver") or "5.38.0"
 local prod_util_ver=os.getenv("prod_util_ver") or "2.1.1"
 
 load(pathJoin("stack-intel", stack_intel_ver))