diff --git a/composer.json b/composer.json
index b597c03..6243693 100644
--- a/composer.json
+++ b/composer.json
@@ -15,6 +15,8 @@
 		}
 	},
 	"require": {
+		"phpunit/phpunit": "^10",
+		"php": "^8.1"
 	},
 	"autoload": {
 		"psr-4": {
diff --git a/sbin/retag b/sbin/retag
new file mode 100755
index 0000000..61a3e5b
--- /dev/null
+++ b/sbin/retag
@@ -0,0 +1,18 @@
+#!/bin/bash
+# -*- coding: utf-8 mode: sh -*- vim:sw=4:sts=4:et:ai:si:sta:fenc=utf-8
+source /etc/nulib.sh || exit 1
+
+TAGS=(
+    8.1
+    8.2
+)
+
+args=(
+    "refaire les tags en cas de mise à jour de la branche"
+)
+parse_args "$@"; set -- "${args[@]}"
+
+for tag in "${TAGS[@]}"; do
+    git tag -f "$tag"
+    git push -f origin "$tag" || die
+done