diff --git a/sites/gent/macros.tex b/sites/gent/macros.tex
index 1cab1bd5654..2c34c9b8c17 100644
--- a/sites/gent/macros.tex
+++ b/sites/gent/macros.tex
@@ -78,7 +78,7 @@
 \macro{\hpcinfo}{hpc@ugent.be}
 \macro{\hpcusersml}{hpc-users@lists.ugent.be}
 \macro{\hpcannounceml}{hpc-announce@lists.ugent.be}
-\macro{\operatingsystem}{RHEL 8.4 (kirlia, doduo, accelgor, slaking, joltik, skitty, victini, swalot)}
+\macro{\operatingsystem}{RHEL 8.6 (kirlia, doduo, accelgor, slaking, joltik, skitty, victini, swalot)}
 \macro{\operatingsystembase}{Red Hat Enterprise Linux}
 % special for perfexpert tutorial
 \macro{\mpirun}{vsc-mympirun}