diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8de3650f810c5735340edbbf72b71a65c938f332..81b6acf870faf64fed075458c01f7f3620129735 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,10 @@
 Changelog
 =========
 
+5.0.0 (Bootstrap 5)
+-----
+- Passage possible à unicaen/app version 5 (Bootstrap 5).
+
 4.0.2
 -----
 - Possibilité d'ordonner les imports/synchros.
diff --git a/composer.json b/composer.json
index ce0157cb97a78c792c6db5d0590785fb830a8339..64b1f5be934be4e386c0fc7e5e52ab7798f8f237 100644
--- a/composer.json
+++ b/composer.json
@@ -10,7 +10,7 @@
     ],
     "require": {
         "ext-pdo": "*",
-        "unicaen/app": "^4.0",
+        "unicaen/app": "^4.0 || ^5.0",
         "unicaen/livelog": "dev-master",
         "doctrine/dbal": "^2.9",
         "beberlei/assert": "^2.7",