diff --git a/conf/app.src b/conf/app.src
index 2d5efe9..5e5bc8e 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/backdrop/backdrop/releases/download/1.20.2/backdrop.zip
-SOURCE_SUM=b0e33715c9025c5c8c51e3f7a89db8b7279b7b115f0f673ea978b910a84c18ed
+SOURCE_URL=https://github.com/backdrop/backdrop/releases/download/1.20.3/backdrop.zip
+SOURCE_SUM=e44521ac85dfcfb0814902a8650dd9cf9ec6d03d23462ee820714f09a3b3ac61
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=zip
 SOURCE_IN_SUBDIR=true
diff --git a/manifest.json b/manifest.json
index f634aa5..44998bf 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": "1.20.2~ynh1",
+    "version": "1.20.3~ynh1",
     "url": "https://backdropcms.org/",
     "upstream": {
         "license": "GPL-2.0",