diff --git a/.conda/evpfft/cpu/meta.yaml b/.conda/evpfft/cpu/meta.yaml
index 101ad563f..85265359c 100644
--- a/.conda/evpfft/cpu/meta.yaml
+++ b/.conda/evpfft/cpu/meta.yaml
@@ -25,14 +25,15 @@ requirements:
     - {{ compiler('cxx') }}={{ macos_compiler_version }} # [osx]
     - openmpi
   host:
-    - openmpi
+    #- openmpi
+    - openmpi >=4.1.6,<5.0a0
     - heffte-cpu
     - fftw=*=mpi_openmpi_*
     - kokkos=4.1
     - hdf5=*=mpi_openmpi_*
     - elements-cpu
   run:
-    - openmpi
+    - openmpi >=4.1.6,<5.0a0
     - heffte-cpu
     - fftw=*=mpi_openmpi_*
     - kokkos=4.1
diff --git a/.conda/heffte/cpu/meta.yaml b/.conda/heffte/cpu/meta.yaml
index fab159344..f24dfd1a2 100644
--- a/.conda/heffte/cpu/meta.yaml
+++ b/.conda/heffte/cpu/meta.yaml
@@ -23,10 +23,10 @@ requirements:
     - {{ compiler('cxx') }}={{ macos_compiler_version }} # [osx]
     - openmpi
   host:
-    - openmpi #>=4.1.6,<5.0a0
+    - openmpi >=4.1.6,<5.0a0
     - fftw
   run:
-    - openmpi #>=4.1.6,<5.0a0
+    - openmpi >=4.1.6,<5.0a0
     - fftw
 
 about: