diff --git a/modulefiles/build.hera.gnu.lua b/modulefiles/build.hera.gnu.lua
index daeeb9cbc..c00c8ba3d 100644
--- a/modulefiles/build.hera.gnu.lua
+++ b/modulefiles/build.hera.gnu.lua
@@ -8,33 +8,39 @@ load(pathJoin("cmake", cmake_ver))
 hpss_ver=os.getenv("hpss_ver") or ""
 load(pathJoin("hpss", hpss_ver))
 
-prepend_path("MODULEPATH", "/scratch2/NCEPDEV/nwprod/hpc-stack/libs/hpc-stack/modulefiles/stack")
+prepend_path("MODULEPATH", "/scratch1/NCEPDEV/nems/role.epic/gnu/modulefiles")
 
-hpc_ver=os.getenv("hpc_ver") or "1.1.0"
+gnu_ver="9.2"
+load(pathJoin("gnu", gnu_ver))
+
+prepend_path("MODULEPATH", "/scratch1/NCEPDEV/nems/role.epic/hpc-stack/libs/gnu-9.2_ncdf49/modulefiles/stack")
+
+hpc_ver=os.getenv("hpc_ver") or "1.2.0"
 load(pathJoin("hpc", hpc_ver))
 
-hpc_gnu_ver=os.getenv("hpc_gnu_ver") or "9.2.0"
-load(pathJoin("hpc-gnu", hpc_gnu_ver))
+load(pathJoin("hpc-gnu", gnu_ver))
 
 mpich_ver=os.getenv("mpich_ver") or "3.3.2"
+load(pathJoin("mpich", mpich_ver))
+
 load(pathJoin("hpc-mpich", mpich_ver))
 
-netcdf_ver=os.getenv("netcdf_ver") or "4.7.4"
+netcdf_ver=os.getenv("netcdf_ver") or "4.9.1"
 load(pathJoin("netcdf", netcdf_ver))
 
-esmf_ver=os.getenv("esmf_ver") or "8.4.0b08"
+esmf_ver=os.getenv("esmf_ver") or "8.4.1"
 load(pathJoin("esmf", esmf_ver))
 
 bacio_ver=os.getenv("bacio_ver") or "2.4.1"
 load(pathJoin("bacio", bacio_ver))
 
-g2_ver=os.getenv("g2_ver") or "3.4.3"
+g2_ver=os.getenv("g2_ver") or "3.4.5"
 load(pathJoin("g2", g2_ver))
 
-ip_ver=os.getenv("ip_ver") or "4.0.0"
+ip_ver=os.getenv("ip_ver") or "3.3.3"
 load(pathJoin("ip", ip_ver))
 
-nemsio_ver=os.getenv("nemsio_ver") or "2.5.2"
+nemsio_ver=os.getenv("nemsio_ver") or "2.5.4"
 load(pathJoin("nemsio", nemsio_ver))
 
 sp_ver=os.getenv("sp_ver") or "2.3.3"
@@ -49,13 +55,13 @@ load(pathJoin("sfcio", sfcio_ver))
 sigio_ver=os.getenv("sigio_ver") or "2.3.2"
 load(pathJoin("sigio", sigio_ver))
 
-nccmp_ver=os.getenv("nccmp_ver") or "1.8.7.0"
+nccmp_ver=os.getenv("nccmp_ver") or "1.9.0.1"
 load(pathJoin("nccmp", nccmp_ver))
 
 zlib_ver=os.getenv("zlib_ver") or "1.2.11"
 load(pathJoin("zlib", zlib_ver))
 
-png_ver=os.getenv("png_ver") or "1.6.35"
-load(pathJoin("png", png_ver))
+png_ver=os.getenv("png_ver") or "1.6.37"
+load(pathJoin("libpng", png_ver))
 
 whatis("Description: UFS_UTILS build environment")