diff --git a/machines/perlmutter/config_machines.xml b/machines/perlmutter/config_machines.xml
index a89159b8..fac14222 100644
--- a/machines/perlmutter/config_machines.xml
+++ b/machines/perlmutter/config_machines.xml
@@ -59,31 +59,31 @@
       </modules>
       <modules compiler="gnu">
         <command name="load">PrgEnv-gnu</command>
-        <command name="switch">gcc gcc/11.2.0</command>
+	
       </modules>
       <modules>
-        <command name="swap">craype craype/2.7.10</command>
+        <command name="swap">craype craype/2.7.30</command>
       </modules>
       <modules>
-        <command name="switch">cray-libsci/21.08.1.2</command>
+        <command name="switch">cray-libsci/23.12.5</command>
       </modules>
       <modules>
-        <command name="load">cray-mpich/8.1.9</command>
+        <command name="load">cray-mpich/8.1.28</command>
       </modules>
       <modules mpilib="mpi-serial">
         <command name="rm">cray-netcdf-hdf5parallel</command>
         <command name="rm">cray-hdf5-parallel</command>
         <command name="rm">cray-parallel-netcdf</command>
-        <command name="load">cray-hdf5/1.12.0.7</command>
-        <command name="load">cray-netcdf/4.7.4.7</command>
+        <command name="load">cray-hdf5</command>
+        <command name="load">cray-netcdf</command>
       </modules>
       <modules mpilib="!mpi-serial">
-        <command name="load">cray-hdf5-parallel/1.12.0.7</command>
-        <command name="load">cray-netcdf-hdf5parallel/4.7.4.7</command>
-        <command name="load">cray-parallel-netcdf/1.12.1.7</command>
+        <command name="load">cray-hdf5-parallel</command>
+        <command name="load">cray-netcdf-hdf5parallel</command>
+        <command name="load">cray-parallel-netcdf</command>
       </modules>
       <modules>
-        <command name="load">cmake/3.20.5</command>
+        <command name="load">cmake/3.22.0</command>
       </modules>
     </module_system>
     <environment_variables>