diff --git a/CHANGES.MD b/CHANGES.MD
index 69501aac..bc2added 100644
--- a/CHANGES.MD
+++ b/CHANGES.MD
@@ -1,5 +1,9 @@
 # ChangeLog 
 
+## Version 8.4.7
+* corrections :
+    - Chaine de mise à jour des variables internes 
+
 ## Version 8.4.6
 * corrections : 
     - Encodage des dates dans la liste des articles news et blog
diff --git a/core/core.php b/core/core.php
index b16a91a1..a62c4d82 100644
--- a/core/core.php
+++ b/core/core.php
@@ -894,10 +894,10 @@ class common {
 			$this->setData(['core', 'dataVersion', 826]);
 			$this->SaveData();
 		}
-		// Version 8.3.13
-		if($this->getData(['core', 'dataVersion']) < 8313) {
+		// Version 8.3.1
+		if($this->getData(['core', 'dataVersion']) < 831) {
 			$this->setData(['theme','header','imageContainer','auto']);
-			$this->setData(['core', 'dataVersion', 8313]);
+			$this->setData(['core', 'dataVersion', 831]);
 			$this->SaveData();
 		}
 		// Version 8.4.0
@@ -909,7 +909,6 @@ class common {
 			$this->setData(['core', 'dataVersion', 840]);
 			$this->SaveData();
 		}
-
 		// Version 8.4.4
 		if($this->getData(['core', 'dataVersion']) < 844) {
 			$this->setData(['theme','footer','socialsPosition','none']);