diff --git a/recipe/meta.yaml b/recipe/meta.yaml
index b45f42d..0da55b9 100644
--- a/recipe/meta.yaml
+++ b/recipe/meta.yaml
@@ -1,7 +1,7 @@
 {% set name = "genesis2" %}
 {% set version = "2.5" %}
 
-{% set build = 0 %}
+{% set build = 1 %}
 # ensure mpi is defined (needed for conda-smithy recipe-lint)
 {% set mpi = mpi or 'nompi' %}
 
@@ -49,12 +49,10 @@ requirements:
     - {{ compiler('fortran') }}              # [not win]
     - {{ compiler('m2w64_fortran') }}        # [win]
     - cmake
-    - mpich ==3.3.2  # [mpi == 'mpich']
-    - openmpi  # [mpi == 'openmpi']
+    - {{ mpi }}  # [mpi != 'nompi']
   host:
   run:
-    - mpich ==3.3.2  # [mpi == 'mpich']
-    - openmpi  # [mpi == 'openmpi']
+    - {{ mpi }}  # [mpi != 'nompi']
 
 test:
   commands: