diff --git a/Makefile b/Makefile
index 245ec72b..a89e9222 100644
--- a/Makefile
+++ b/Makefile
@@ -179,6 +179,10 @@ info:
 .PHONY: gettext
 gettext:
 	$(SPHINXBUILD) -b gettext $(I18NSPHINXOPTS) locale
+	# Keep POT-Creation-Date empty, following the convention of the zammad/zammad
+	# i18n catalog: a timestamp here churns on every regeneration, gets copied
+	# into all .po headers by msgmerge and causes Weblate rebase conflicts.
+	perl -pi -e 's/^"POT-Creation-Date: .*/"POT-Creation-Date: \\n"/' locale/user-docs.pot
 	@echo
 	@echo "Created or updated POT file in locale."
 
diff --git a/locale/user-docs.pot b/locale/user-docs.pot
index a939d23e..abe05d08 100644
--- a/locale/user-docs.pot
+++ b/locale/user-docs.pot
@@ -8,7 +8,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: Zammad User Documentation pre-release\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2026-08-28 15:08+0200\n"
+"POT-Creation-Date: \n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"