diff --git a/ibutils.changes b/ibutils.changes
index 5007911..c87a446 100644
--- a/ibutils.changes
+++ b/ibutils.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Feb 22 13:36:47 UTC 2024 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Use %patch -P N instead of deprecated %patchN.
+
 -------------------------------------------------------------------
 Tue Sep 14 07:31:40 UTC 2021 - Nicolas Morey-Chaisemartin <nmoreychaisemartin@suse.com>
 
diff --git a/ibutils.spec b/ibutils.spec
index 46072ba..8079489 100644
--- a/ibutils.spec
+++ b/ibutils.spec
@@ -115,14 +115,14 @@ This package contains shared libraries for the IB utils.
 
 %prep
 %setup -q -n ibutils-%upstream_ver
-%patch1
-%patch2
-%patch4
-%patch5
-%patch6
-%patch7
-%patch8
-%patch9 -p1
+%patch -P 1
+%patch -P 2
+%patch -P 4
+%patch -P 5
+%patch -P 6
+%patch -P 7
+%patch -P 8
+%patch -P 9 -p1
 
 %build
 autoreconf -fi