diff --git a/mache/spack/pm-cpu_intel_mpich.csh b/mache/spack/pm-cpu_intel_mpich.csh
index 665dd3d4..636b38b4 100644
--- a/mache/spack/pm-cpu_intel_mpich.csh
+++ b/mache/spack/pm-cpu_intel_mpich.csh
@@ -24,7 +24,7 @@ module load PrgEnv-intel/8.5.0 \
             intel/2023.2.0 \
             craype-accel-host \
             craype/2.7.30 \
-            libfabric/1.15.2.0 \
+            libfabric/1.20.1 \
             cray-mpich/8.1.28
 {% if e3sm_hdf5_netcdf %}
 module load cray-hdf5-parallel/1.12.2.9 \
diff --git a/mache/spack/pm-cpu_intel_mpich.sh b/mache/spack/pm-cpu_intel_mpich.sh
index 0c9e550b..88efb102 100644
--- a/mache/spack/pm-cpu_intel_mpich.sh
+++ b/mache/spack/pm-cpu_intel_mpich.sh
@@ -24,7 +24,7 @@ module load PrgEnv-intel/8.5.0 \
             intel/2023.2.0 \
             craype-accel-host \
             craype/2.7.30 \
-            libfabric/1.15.2.0 \
+            libfabric/1.20.1 \
             cray-mpich/8.1.28
 {% if e3sm_hdf5_netcdf %}
 module load cray-hdf5-parallel/1.12.2.9 \
diff --git a/mache/spack/pm-cpu_intel_mpich.yaml b/mache/spack/pm-cpu_intel_mpich.yaml
index 97846bdd..aec3302f 100644
--- a/mache/spack/pm-cpu_intel_mpich.yaml
+++ b/mache/spack/pm-cpu_intel_mpich.yaml
@@ -101,7 +101,7 @@ spack:
         - intel/2023.2.0
         - craype-accel-host
         - craype/2.7.30
-        - libfabric/1.15.2.0
+        - libfabric/1.20.1
       buildable: false
     cray-mpich:
       externals:
@@ -109,14 +109,7 @@ spack:
         prefix: /opt/cray/pe/mpich/8.1.28/ofi/intel/19.0
         modules:
         - cray-mpich/8.1.28
-        - libfabric/1.15.2.0
-      buildable: false
-    libfabric:
-      externals:
-      - spec: libfabric@1.15.2.0
-        prefix: /opt/cray/libfabric/1.15.2.0
-        modules:
-        - libfabric/1.15.2.0
+        - libfabric/1.20.1
       buildable: false
 {% if e3sm_hdf5_netcdf %}
     hdf5:
@@ -158,7 +151,7 @@ spack:
       - intel/2023.2.0
       - craype-accel-host
       - craype/2.7.30
-      - libfabric/1.15.2.0
+      - libfabric/1.20.1
       environment:
         prepend_path:
           PKG_CONFIG_PATH: "/opt/cray/xpmem/2.6.2-2.5_2.33__gd067c3f.shasta/lib64/pkgconfig"