diff --git a/com_leaflet/install.xml b/com_leaflet/install.xml
index cb59a67..70d4860 100644
--- a/com_leaflet/install.xml
+++ b/com_leaflet/install.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<extension type="component" version="3.0" method="upgrade">
+<extension type="component" version="4.0" method="upgrade">
 
 	<name>leaflet</name>
 	<!-- The following elements are optional and free of formatting constraints -->
@@ -24,15 +24,19 @@
 	<!-- Note the folder attribute: This attribute describes the folder
 		to copy FROM in the package to install therefore files copied
 		in this section are copied from /site/ in the package -->
-	<files folder="site">
-		<filename>index.html</filename>
-		<filename>leaflet.php</filename>
-		<filename>controller.php</filename>
-		<folder>views</folder>
+	<files folder="site/">
+		<file>leaflet.php</file>
 		<folder>assets</folder>
-		<folder>models</folder>
+		<folder>services</folder>
+        <folder>language</folder>
+        <folder>src</folder>
+        <folder>tmpl</folder>
 	</files>
 
+	<languages>
+        <language tag="fr-FR">site/language/fr-FR/fr-FR.com_leaflet.ini</language>
+    </languages>
+
 	<media destination="com_leaflet" folder="media">
 		<filename>index.html</filename>
 		<folder>js</folder>
@@ -45,14 +49,20 @@
 		<!-- Note the folder attribute: This attribute describes the folder
 			to copy FROM in the package to install therefore files copied
 			in this section are copied from /admin/ in the package -->
-		<files folder="admin">
+		<files folder="admin/">
 			<!-- Admin Main File Copy Section -->
-			<filename>index.html</filename>
-			<filename>leaflet.php</filename>
 			<folder>language</folder>
+			<folder>services</folder>
+            <folder>src</folder>
+            <folder>tmpl</folder>
 			<!-- SQL files section -->
 			<folder>sql</folder>
 		</files>
+
+		<languages>
+            <language tag="fr-FR">admin/language/fr-FR/fr-FR.com_leaflet.ini</language>
+            <language tag="fr-FR">admin/language/fr-FR/fr-FR.com_leaflet.sys.ini</language>
+        </languages>
 	</administration>
 
 </extension>