diff --git a/xcfun.spec b/xcfun.spec
index a10350a..0e8b41e 100644
--- a/xcfun.spec
+++ b/xcfun.spec
@@ -2,7 +2,7 @@
 
 Name:    xcfun
 Version: 2.1.1
-Release: 13%{?dist}
+Release: 14%{?dist}
 Summary: A library of approximate exchange-correlation functionals
 License: MPL-2.0
 URL:     https://xcfun.readthedocs.io
@@ -70,8 +70,8 @@ This package contains the Python bindings for XCFun.
 
 %prep
 %setup -q
-%patch -P0 -p1 -b .overflow
-%patch -P1 -p1 -b .32bit
+%patch 0 -p1 -b .overflow
+%patch 1 -p1 -b .32bit
 
 %build
 %cmake -B %{_host} -DCMAKE_BUILD_TYPE=RelWithDebInfo -DLIB=%{_lib} -DXCFUN_PYTHON_INTERFACE=ON -DPYMOD_INSTALL_LIBDIR=../../%{python3_sitearch}
@@ -100,6 +100,9 @@ ctest --output-on-failure
 %{python3_sitearch}/xcfun
 
 %changelog
+* Thu Jun 20 2024 Susi Lehtola <jussilehtola@fedoraproject.org> - 2.1.1-14
+- Modernize patch syntax.
+
 * Sat Jun 08 2024 Python Maint <python-maint@redhat.com> - 2.1.1-13
 - Rebuilt for Python 3.13