diff --git a/configs/sites/tier1/hercules/packages_gcc.yaml b/configs/sites/tier1/hercules/packages_gcc.yaml
index 5781224d8..37c496c45 100644
--- a/configs/sites/tier1/hercules/packages_gcc.yaml
+++ b/configs/sites/tier1/hercules/packages_gcc.yaml
@@ -2,13 +2,13 @@ packages:
   all:
     compiler:: [gcc@12.2.0]
     providers:
-      mpi:: [openmpi@4.1.6]
+      mpi:: [openmpi@4.1.4]
   mpi:
     buildable: False
   openmpi:
     externals:
-    - spec: openmpi@4.1.6%gcc@12.2.0~cuda~cxx~cxx_exceptions~java~memchecker+pmi+static~wrapper-rpath
+    - spec: openmpi@4.1.4%gcc@12.2.0~cuda~cxx~cxx_exceptions~java~memchecker+pmi+static~wrapper-rpath
         schedulers=slurm
       modules:
       - gcc/12.2.0
-      - openmpi/4.1.6-gcc-12.2.0-spack
+      - openmpi/4.1.4