diff --git a/conf/app.src b/conf/app.src
index 4182c87..dd6e678 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://files.spip.net/spip/archives/spip-v4.0.4.zip
-SOURCE_SUM=9450a3e0f09a805b450691ba361e5aedaf5fda88c5968d0d762505901c03634a
+SOURCE_URL=https://files.spip.net/spip/archives/spip-v4.1.0-rc.zip
+SOURCE_SUM=caa9314faa0211995efea4f32dc6951832d9ad1e1c1adaad1e7a33afaeb7e55d
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=zip
 SOURCE_IN_SUBDIR=false
diff --git a/manifest.json b/manifest.json
index b19010f..dfc72df 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "CMS with a focus on collaborative edition and multilingualism",
         "fr": "CMS conçu pour l'édition collaborative et le multilinguisme"
     },
-    "version": "4.0.4~ynh1",
+    "version": "4.1.0-rc~ynh1",
     "url": "http://www.spip.net/",
     "upstream": {
         "license": "GPL-3.0-or-later",