diff --git a/conf/app.src b/conf/app.src
index c258c04..4cfb909 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/concrete5/concrete5/archive/8.5.2.tar.gz
-SOURCE_SUM=60c290faba9ecece8bc61bbec485e0bd1697af58f9e6f247eceb2241bfa2f75a
+SOURCE_URL=https://github.com/concrete5/concrete5/archive/8.5.5.tar.gz
+SOURCE_SUM=e1cf84110f625e3ac27c227eb697c59694eb6fdaa12e8ce92c7b3fb79c5b09f4
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
diff --git a/manifest.json b/manifest.json
index c62f31b..d0f0699 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Open Source Content Management System for Teams",
         "fr": "Système de gestion de contenu Open Source pour les équipes"
     },
-    "version": "8.5.2~ynh2",
+    "version": "8.5.5~ynh1",
     "url": "www.concrete5.org",
     "upstream": {
         "license": "MIT",