diff --git a/README.md b/README.md
index 2f093d4..2e148a1 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:** 1.21.0~ynh1
+**Shipped version:** 1.21.1~ynh1
 
 **Demo:** https://backdropcms.org/demo
 
diff --git a/README_fr.md b/README_fr.md
index a922847..3163a61 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 :** 1.21.0~ynh1
+**Version incluse :** 1.21.1~ynh1
 
 **Démo :** https://backdropcms.org/demo
 
diff --git a/conf/app.src b/conf/app.src
index 4350e11..86b4125 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/backdrop/backdrop/releases/download/1.21.0/backdrop.zip
-SOURCE_SUM=9d0e307150259ce186658605b6907160818f7cf2f1c9d39035ae63ed7e5be717
+SOURCE_URL=https://github.com/backdrop/backdrop/releases/download/1.21.1/backdrop.zip
+SOURCE_SUM=8d5a7322568a95e5ae85728ec681e2b8d7c7785112a6a2570469c9bf18d3bdbe
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=zip
 SOURCE_IN_SUBDIR=true
diff --git a/manifest.json b/manifest.json
index b923cc8..acc07f1 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": "1.21.0~ynh1",
+    "version": "1.21.1~ynh1",
     "url": "https://backdropcms.org/",
     "upstream": {
         "license": "GPL-2.0",