diff --git a/README.md b/README.md
index e342d65..e9c5342 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ Features :
 * Marketing tools
 * **and more**...
 
-**Shipped version:** 8.5.0
+**Shipped version:** 8.4.5
 
 ## Documentation
 
diff --git a/conf/app.src b/conf/app.src
index ad951e1..924e56a 100644
--- a/conf/app.src
+++ b/conf/app.src
@@ -1,5 +1,5 @@
-SOURCE_URL=https://github.com/concrete5/concrete5/archive/8.5.0.tar.gz
-SOURCE_SUM=0817919036201331bd610e1e77fb83732b235ab2b6ed1f19b2312899a7929318
+SOURCE_URL=https://github.com/concrete5/concrete5/archive/8.4.5.tar.gz
+SOURCE_SUM=a8708e6d55dba3bcf6aeb2a377eaa851650cb8634343c7ce4e88045fd58d565e
 SOURCE_SUM_PRG=sha256sum
 SOURCE_FORMAT=tar.gz
 SOURCE_IN_SUBDIR=true
diff --git a/manifest.json b/manifest.json
index 3d0c058..4ab067e 100644
--- a/manifest.json
+++ b/manifest.json
@@ -6,7 +6,7 @@
         "en": "Create a modern Website",
         "fr": "Créer un site web moderne avec un CMS moderne"
     },
-    "version": "8.5.0~ynh1",
+    "version": "8.4.5~ynh1",
     "url": "www.concrete5.org",
     "license": "MIT",
     "maintainer": {