diff --git a/src/docs/modules/ROOT/pages/archi-tech.adoc b/src/docs/modules/ROOT/pages/archi-tech.adoc
index d0736f69..48749980 100644
--- a/src/docs/modules/ROOT/pages/archi-tech.adoc
+++ b/src/docs/modules/ROOT/pages/archi-tech.adoc
@@ -13,20 +13,20 @@ Node "Esup - Stage" {
     
     
     Node "Frontend" as frontend {
-        [Angular 18] as angular
-        [Node 20] as Node
+        [Angular 14] as angular
+        [Node 16] as Node
     }
     
     Node "Backend" as backend {
-        [Spring boot 3.3.4] as spring
-        [Java 21] as java
+        [Spring boot 2.5.4] as spring
+        [Java 11] as java
     }
     
 
 }
 
     note top of "Esup - Stage"
-    Tomcat 10
+    Tomcat 9
     end note