diff --git a/CHANGELOG.md b/CHANGELOG.md
index 16e8863..45f14fb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ## [Unreleased]
 
 ### Changed
+
+- Move to use Intel Fortran 2021.11 and Intel MPI 2021.11 on SLES15 at NCCS.
+
 ### Fixed
 ### Removed
 ### Added
diff --git a/g5_modules b/g5_modules
index 5a2a7e1..7e60c38 100755
--- a/g5_modules
+++ b/g5_modules
@@ -138,10 +138,10 @@ if ( $site == NCCS ) then
    else
 
       set mod2 = comp/gcc/11.4.0
-      set mod3 = comp/intel/2021.6.0
-      set mod4 = mpi/openmpi/4.1.6/intel-2021.6.0-gcc-11.4.0
+      set mod3 = comp/intel/2024.0.0
+      set mod4 = mpi/impi/2021.11
       set mod5 = python/GEOSpyD/Min23.5.2-0_py3.11
-      set basedir = /discover/swdev/gmao_SIteam/Baselibs/ESMA-Baselibs-7.23.0/x86_64-pc-linux-gnu/ifort_2021.6.0-openmpi_4.1.6-SLES15
+      set basedir = /discover/swdev/gmao_SIteam/Baselibs/ESMA-Baselibs-7.23.0/x86_64-pc-linux-gnu/ifort_2021.11.0-intelmpi_2021.11.0-SLES15
       set usemod1 = /discover/swdev/gmao_SIteam/modulefiles-SLES15
 
    endif