diff --git a/data/y-web/Y_Version.txt b/data/y-web/Y_Version.txt
index cfcfa8bd3..cac219bff 100644
--- a/data/y-web/Y_Version.txt
+++ b/data/y-web/Y_Version.txt
@@ -1,3 +1,3 @@
-version=3.0.14
+version=3.0.15
 date=14.02.2023
 info=NI-Neutrino-Webinterface
diff --git a/data/y-web/Y_yweb.js b/data/y-web/Y_yweb.js
index 2e92a727a..a4fa2fe59 100644
--- a/data/y-web/Y_yweb.js
+++ b/data/y-web/Y_yweb.js
@@ -58,14 +58,14 @@ Object.extend(Y.yweb.prototype, {
 /* main instance */
 if (window == top.top_main.prim_menu) {
 	var yweb = new Y.yweb();
-	yweb.require_prototype("1.6");
+	yweb.require_prototype("1.7.3");
 }
 else 
 	if(top.top_main.prim_menu && top.top_main.prim_menu.yweb)
 		var yweb = top.top_main.prim_menu.yweb;
 	else { // should not happen!
 		var yweb = new Y.yweb();
-		yweb.require_prototype("1.6");
+		yweb.require_prototype("1.7.3");
 	}
 	
 /* n/m= type, menuitem, desc, file, tag, version, url, yweb_version, info_url