diff --git a/acls.yml b/acls.yml
index d55c6928c37b06ccc040cf5435525b912e3b8b94..08f263d2cd601876d2bc66c76e25f1830827e0e4 100644
--- a/acls.yml
+++ b/acls.yml
@@ -56,7 +56,7 @@ compilers:
     version: '2021'
 mpis:
   - name: 'psmpi'
-    version: '5.6'
+    version: '5'
   - name: 'impi'
     version: '2021'
   - name: 'OpenMPI'