diff --git a/flex.changes b/flex.changes
index b57011c..ef3ae5d 100644
--- a/flex.changes
+++ b/flex.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Mon Feb 26 08:37:25 UTC 2024 - Dominique Leuenberger <dimstar@opensuse.org>
+
+- Use %autosetup macro. Allows to eliminate the usage of deprecated
+  PatchN.
+
 -------------------------------------------------------------------
 Sat May  1 19:02:40 UTC 2021 - Dirk Müller <dmueller@suse.com>
 
diff --git a/flex.spec b/flex.spec
index c489c4c..670457e 100644
--- a/flex.spec
+++ b/flex.spec
@@ -66,8 +66,7 @@ patterns in text.
 This package contains libraries for using flex.
 
 %prep
-%setup -q
-%patch0 -p1
+%autosetup -p1
 
 %build
 cp -a %{SOURCE2} .