diff --git a/configs/sites/tier1/narwhal/packages_oneapi-2024.2.0.yaml b/configs/sites/tier1/narwhal/packages_oneapi-2026.1.0.yaml
similarity index 67%
rename from configs/sites/tier1/narwhal/packages_oneapi-2024.2.0.yaml
rename to configs/sites/tier1/narwhal/packages_oneapi-2026.1.0.yaml
index 695e4ab52..d3eb0280c 100644
--- a/configs/sites/tier1/narwhal/packages_oneapi-2024.2.0.yaml
+++ b/configs/sites/tier1/narwhal/packages_oneapi-2026.1.0.yaml
@@ -1,7 +1,7 @@
 packages:
   all:
     require:
-    - any_of: ['%intel-oneapi-compilers@=2024.2.0']
+    - any_of: ['%intel-oneapi-compilers@=2026.1.0']
       when: '%intel-oneapi-compilers'
     - any_of: ['%gcc@=13.3.0']
       when: '%gcc'
@@ -12,21 +12,19 @@ packages:
   intel-oneapi-compilers:
     buildable: false
     externals:
-    - spec: intel-oneapi-compilers@2024.2.0 +fix_rt_linkage
-      prefix: /opt/intel/oneapi_2024.2.0.634
+    - spec: intel-oneapi-compilers@2026.1.0 +fix_rt_linkage
+      prefix: /p/app/projects/NEPTUNE/spack-stack/oneapi-2026.1.0
       modules:
       - PrgEnv-intel/8.5.0
-      - intel-oneapi/2024.2
+      - intel-oneapi/2026.1.0
       extra_attributes:
         compilers:
-          c: /opt/intel/oneapi_2024.2.0.634/compiler/2024.2/bin/icx
-          cxx: /opt/intel/oneapi_2024.2.0.634/compiler/2024.2/bin/icpx
-          fortran: /opt/intel/oneapi_2024.2.0.634/compiler/2024.2/bin/ifort
+          c: /p/app/projects/NEPTUNE/spack-stack/oneapi-2026.1.0/compiler/2026.1/bin/icx
+          cxx: /p/app/projects/NEPTUNE/spack-stack/oneapi-2026.1.0/compiler/2026.1/bin/icpx
+          fortran: /p/app/projects/NEPTUNE/spack-stack/oneapi-2026.1.0/compiler/2026.1/bin/ifx
         environment:
           set:
             CONFIG_SITE: ''
-            # Force ifort not ifx
-            INTEL_COMPILER_TYPE: 'RECOMMENDED'
   gcc:
     buildable: false
     externals:
@@ -59,5 +57,5 @@ packages:
   intel-oneapi-mkl:
     buildable: false
     externals:
-    - spec: intel-oneapi-mkl@2024.2
-      prefix: /opt/intel/oneapi_2024.2.0.634
+    - spec: intel-oneapi-mkl@2026.1
+      prefix: /p/app/projects/NEPTUNE/spack-stack/oneapi-2026.1.0
diff --git a/util/compilers/intel_oneapi-2026.1.0_install.sh b/util/compilers/intel_oneapi-2026.1.0_install.sh
index 00aaed103..69180560d 100755
--- a/util/compilers/intel_oneapi-2026.1.0_install.sh
+++ b/util/compilers/intel_oneapi-2026.1.0_install.sh
@@ -10,7 +10,9 @@
 set -eu
 
 umask 0022
+set +e
 module purge
+set -e
 
 if [ "$#" -lt 1 ]; then
   echo "Error: Not enough arguments. Provide Intel oneAPI installation prefix."