diff --git a/irqbalance.spec b/irqbalance.spec
index 12f69ae..5dba431 100644
--- a/irqbalance.spec
+++ b/irqbalance.spec
@@ -107,12 +107,6 @@ make check
 %postun
 %systemd_postun_with_restart irqbalance.service
 
-%triggerun -- irqbalance < 2:0.56-3
-if /sbin/chkconfig --level 3 irqbalance ; then
-    /bin/systemctl enable irqbalance.service >/dev/null 2>&1 || :
-fi
-/sbin/chkconfig --del irqbalance >/dev/null 2>&1 || :
-
 %changelog
 * Tue Jul 18 2023 Tao Liu <ltao@redhat.com> - 2:1.9.2-2
 - Rebase to latest upstream commit (50699824c7)