diff --git a/README.md b/README.md
index 4bdeec1cc..47be84328 100644
--- a/README.md
+++ b/README.md
@@ -11,10 +11,8 @@ Hermes is a heterogeneous-aware, multi-tiered, dynamic, and distributed I/O buff
 * A C++ compiler that supports C++ 17.
 * [Thallium](https://mochi.readthedocs.io/en/latest/installing.html) - RPC library for HPC. Use a version greater than `0.5` for RoCE support.
 * [yaml-cpp](https://github.com/jbeder/yaml-cpp) - YAML file parser
-* MPI (tested with MPICH `3.3.2` and OpenMPI `4.0.3`). Note: The MPI-IO adapter
-      only supports MPICH. If you don't need the MPI-IO adapter you can use OpenMPI,
-      but you must define the CMake variable `HERMES_ENABLE_MPIIO_ADAPTER=OFF`.
 * HDF5 1.14.0 if compiling with VFD
+* MPI-IO adapter only tested with MPICH and OpenMPI.
 
 ## Building