diff --git a/texlive.spec b/texlive.spec
index 76d7041..1be271e 100644
--- a/texlive.spec
+++ b/texlive.spec
@@ -1,3 +1,4 @@
+%global _smp_mflags %{nil}
 %global tl_epoch 12
 %global source_date 20230311
 %global tl_version %{source_date}
@@ -21,7 +22,7 @@
 
 Name: texlive
 Version: %{source_date}
-Release: 15%{?dist}
+Release: 16%{?dist}
 Epoch: %{tl_epoch}
 Summary: TeX formatting system
 Group: Applications/Publishing
@@ -28326,6 +28327,10 @@ yes | %{_bindir}/updmap-sys --quiet --syncwithtrees >/dev/null 2>&1 || :
 %{_texdir}/texmf-dist/tex/luatex/lua-uni-algos
 
 %changelog
+* Sat Jun 22 2024 Than Ngo <than@redhat.com> - 12:20230311-16
+- disable Build in parallel due to random build error
+Related: RHEL-34826
+
 * Fri Jun 21 2024 Than Ngo <than@redhat.com> - 12:20230311-15
 - add missing lua-uni-algos and dependency in texlive-luaotfload
 Related: RHEL-34826