diff --git a/python3.9.spec b/python3.9.spec
index 7207f62..b7c02c4 100644
--- a/python3.9.spec
+++ b/python3.9.spec
@@ -17,7 +17,7 @@ URL: https://www.python.org/
 #global prerel ...
 %global upstream_version %{general_version}%{?prerel}
 Version: %{general_version}%{?prerel:~%{prerel}}
-Release: 3%{?dist}
+Release: 4%{?dist}
 License: Python
 
 
@@ -261,6 +261,7 @@ BuildRequires: valgrind-devel
 BuildRequires: xz-devel
 BuildRequires: zlib-devel
 
+BuildRequires: systemtap-sdt-devel
 BuildRequires: /usr/bin/dtrace
 
 # workaround http://bugs.python.org/issue19804 (test_uuid requires ifconfig)
@@ -1841,6 +1842,9 @@ CheckPython optimized
 # ======================================================
 
 %changelog
+* Tue Jul 23 2024 Lumír Balhar <lbalhar@redhat.com> - 3.9.19-4
+- Require systemtap-sdt-devel for sys/sdt.h
+
 * Fri Jul 19 2024 Fedora Release Engineering <releng@fedoraproject.org> - 3.9.19-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_41_Mass_Rebuild