diff --git a/Compiler/impi/files/variants.rhel6 b/Compiler/impi/files/variants.rhel6
index 1e171bf..7d491c5 100644
--- a/Compiler/impi/files/variants.rhel6
+++ b/Compiler/impi/files/variants.rhel6
@@ -10,3 +10,6 @@ impi/18.3       stable		intel/18.3
 impi/18.4       stable		intel/18.4
 impi/19.3       stable		intel/19.3
 impi/19.4	stable		intel/19.4
+impi/20.4	unstable	intel/20.4
+impi/21.4	unstable	intel/21.4
+impi/22.1	unstable	intel/22.1