diff --git a/README.md b/README.md
index 817af06..2f093d4 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ If you don't have YunoHost, please consult [the guide](https://yunohost.org/#/in
 Backdrop is a full-featured content management system that allows non-technical users to manage a wide variety of content. It can be used to create all kinds of websites including blogs, image galleries, social networks, intranets, and more.
 
 
-**Shipped version:** 1.20.3~ynh1
+**Shipped version:** 1.21.0~ynh1
 
 **Demo:** https://backdropcms.org/demo
 
diff --git a/README_fr.md b/README_fr.md
index eb22c86..a922847 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -14,7 +14,7 @@ Si vous n'avez pas YunoHost, regardez [ici](https://yunohost.org/#/install) pour
 Backdrop est un système de gestion de contenu complet qui permet aux utilisateurs non techniques de gérer une grande variété de contenu. Il peut être utilisé pour créer toutes sortes de sites Web, notamment des blogs, des galeries d'image, des réseaux sociaux, des intranets et plus encore.
 
 
-**Version incluse :** 1.20.3~ynh1
+**Version incluse :** 1.21.0~ynh1
 
 **Démo :** https://backdropcms.org/demo
 
diff --git a/conf/app.src b/conf/app.src
index 5e5bc8e..4350e11 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/backdrop/backdrop/releases/download/1.20.3/backdrop.zip
-SOURCE_SUM=e44521ac85dfcfb0814902a8650dd9cf9ec6d03d23462ee820714f09a3b3ac61
+SOURCE_URL=https://github.com/backdrop/backdrop/releases/download/1.21.0/backdrop.zip
+SOURCE_SUM=9d0e307150259ce186658605b6907160818f7cf2f1c9d39035ae63ed7e5be717
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=zip
 SOURCE_IN_SUBDIR=true
diff --git a/manifest.json b/manifest.json
index 7241409..b923cc8 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Easy-to-use CMS for building professional websites",
         "fr": "CMS facile à utiliser pour créer des sites Web professionnels"
     },
-    "version": "1.20.3~ynh1",
+    "version": "1.21.0~ynh1",
     "url": "https://backdropcms.org/",
     "upstream": {
         "license": "GPL-2.0",