diff --git a/MPI/hdf5/files/variants.rhel6 b/MPI/hdf5/files/variants.rhel6
index 8d5eb13..1939972 100644
--- a/MPI/hdf5/files/variants.rhel6
+++ b/MPI/hdf5/files/variants.rhel6
@@ -59,4 +59,6 @@ hdf5/1.10.6		stable		gcc/{7.5.0,8.4.0,9.3.0,10.1.0} openmpi/3.1.6
 hdf5/1.10.7		stable		gcc/{7.5.0,8.4.0,9.3.0,10.2.0} openmpi/4.0.5
 hdf5/1.10.7		stable		gcc/10.3.0 openmpi/4.0.5
 
+hdf5/1.10.8		unstable	gcc/10.4.0 openmpi/4.1.4
+
 hdf5/1.12.0		stable		gcc/{7.5.0,8.4.0,9.3.0,10.2.0} openmpi/4.0.5