diff --git a/conf/app.src b/conf/app.src
index af6fced..79c7eb7 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/the-djmaze/snappymail/releases/download/v2.20.6/snappymail-2.20.6.tar.gz
-SOURCE_SUM=c402c7804f8dfd7d98a86777a99c40899175a27ccefc555fc526f08c069ea7f0
+SOURCE_URL=https://github.com/the-djmaze/snappymail/releases/download/v2.21.1/snappymail-2.21.1.tar.gz
+SOURCE_SUM=58288e6d5877abd016fae3d507540199d1dc66461a141c1d2bcb23909ab0e131
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=false
diff --git a/manifest.json b/manifest.json
index 2bd7ce7..8518d41 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Simple, modern, lightweight & fast web-based e-mail client",
         "fr": "Client de messagerie Web simple, moderne, léger et rapide"
     },
-    "version": "2.20.6~ynh1",
+    "version": "2.21.1~ynh1",
     "url": "https://snappymail.eu/",
     "upstream": {
         "license": "AGPL-3.0-only",