diff --git a/env/sles15/x86_64/sysconfigs/packages.yaml b/env/sles15/x86_64/sysconfigs/packages.yaml
index 225c99c..87b0e48 100644
--- a/env/sles15/x86_64/sysconfigs/packages.yaml
+++ b/env/sles15/x86_64/sysconfigs/packages.yaml
@@ -232,7 +232,10 @@ packages:
   readline:
     require: '%gcc@7.5.0'
   slurm:
-    require: '+pmix +hwloc +hdf5 +mariadb +pam +restd +cray_shasta +cgroup +gtk +nvml +rsmi'
+    buildable: false
+    externals:
+      - prefix: /usr
+        spec: slurm@23.11.8%gcc@7.5.0 +cgroup+gtk+hwloc+mariadb+nvml+pam+pmix+restd
   sqlite:
     require: '%gcc@7.5.0'
   tar: