diff --git a/composer.json b/composer.json
index 47ea2de..56f1969 100644
--- a/composer.json
+++ b/composer.json
@@ -47,12 +47,16 @@
 	"extra" : {
 		"tao-extension-name" : "taoGroups"
 	},
-		"autoload" : {
+	"autoload" : {
 		"psr-4" : {
 			"oat\\taoGroups\\" : ""
 		}
 	},
 	"require" : {
-		"oat-sa/oatbox-extension-installer" : "~1.1||dev-master"
+		"oat-sa/oatbox-extension-installer" : "~1.1||dev-master",
+		"oat-sa/generis" : ">=14.0.0",
+		"oat-sa/tao-core" : ">=47.0.0",
+		"oat-sa/extension-tao-backoffice" : ">=6.0.0",
+		"oat-sa/extension-tao-testtaker" : ">=8.0.0"
 	}
 }
\ No newline at end of file
diff --git a/manifest.php b/manifest.php
index 54ccbc7..8b26a9c 100755
--- a/manifest.php
+++ b/manifest.php
@@ -33,14 +33,7 @@
     'label' => 'Groups core extension',
     'description' => 'TAO Groups extension',
     'license' => 'GPL-2.0',
-    'version' => '6.6.2',
     'author' => 'Open Assessment Technologies, CRP Henri Tudor',
-    'requires' => [
-        'taoTestTaker' => '>=4.0.0',
-        'taoBackOffice' => '>=3.0.0',
-        'generis'      => '>=12.15.0',
-        'tao' => '>=36.1.0'
-    ],
     'models' => [
         'http://www.tao.lu/Ontologies/TAOGroup.rdf'
     ],