diff --git a/conf/app.src b/conf/app.src
index e4ccee6..45ffcc2 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/the-djmaze/snappymail/releases/download/v2.17.3/snappymail-2.17.3.tar.gz
-SOURCE_SUM=0236e28bc026779ce234d6d871c2f59ccd18a9ba37c45d57381c8079ba4432e9
+SOURCE_URL=https://github.com/the-djmaze/snappymail/releases/download/v2.17.4/snappymail-2.17.4.tar.gz
+SOURCE_SUM=252751bccecc88934bfa202cced6b8da78d5b0254e4b768c5e5287414965884c
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=false
diff --git a/manifest.json b/manifest.json
index 03ff72e..e31a36b 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": "2.17.3~ynh1",
+    "version": "2.17.4~ynh1",
     "url": "https://snappymail.eu/",
     "upstream": {
         "license": "AGPL-3.0-only",