diff --git a/ruby.spec b/ruby.spec
index b356e59..b050ad2 100644
--- a/ruby.spec
+++ b/ruby.spec
@@ -971,7 +971,7 @@ sed -i 's/^/%lang(ja) /' .ruby-doc.ja
 # Check Ruby hardening.
 %define fortification_x86_64  fortified="12" fortify-able="29"
 %define fortification_i686    fortified="10" fortify-able="26"
-%define fortification_aarch64 fortified="10" fortify-able="26"
+%define fortification_aarch64 fortified="12" fortify-able="29"
 %define fortification_ppc64le fortified="7" fortify-able="24"
 %define fortification_s390x   fortified="10" fortify-able="24"
 %define fortification_riscv64 fortified="10" fortify-able="26"