diff --git a/emacs-auctex.changes b/emacs-auctex.changes
index 7f824d8..445081b 100644
--- a/emacs-auctex.changes
+++ b/emacs-auctex.changes
@@ -1,3 +1,8 @@
+-------------------------------------------------------------------
+Thu Nov 21 15:26:38 UTC 2024 - Bernhard Wiedemann <bwiedemann@suse.com>
+
+- Use gzip -n for deterministic gzip headers
+
 -------------------------------------------------------------------
 Tue Nov 19 14:49:44 UTC 2024 - Dr. Werner Fink <werner@suse.de>
 
diff --git a/emacs-auctex.spec b/emacs-auctex.spec
index f18ef81..6a93aa5 100644
--- a/emacs-auctex.spec
+++ b/emacs-auctex.spec
@@ -158,7 +158,7 @@ unelc ()
     popd
 
     pushd %{buildroot}%{_sitedir}/auctex-%{version}
-	find -name '*.el' -exec gzip -f9 '{}' \+
+	find -name '*.el' -exec gzip -n -f9 '{}' \+
 	unelc auctex-autoloads.elc
 	unelc auctex-pkg.elc
 	unelc auctex.elc