diff --git a/src/ClientServer/Config/Constants.cs b/src/ClientServer/Config/Constants.cs
index b948e48805f86da263deab604257d6e2305a797c..f21a32fbd398a7179564c6ee0156dc1f31e0ce96 100644
--- a/src/ClientServer/Config/Constants.cs
+++ b/src/ClientServer/Config/Constants.cs
@@ -13,7 +13,7 @@ namespace ClientServer.Helpers
     /// </summary>
     public static class Constants
     {
-        public static string VersionString = "2.20.0";
+        public static string VersionString = "2.20.1";
 
         /// <summary>
         /// this is only set once at program.cs!!
diff --git a/src/ClientServer/Controllers/Core/Users/UsersController.cs b/src/ClientServer/Controllers/Core/Users/UsersController.cs
index 0d10e41c72f188b1c34f9520e49f51d088d42408..b3b52bf5c60b1eea4d14a17151dd86171731e847 100644
--- a/src/ClientServer/Controllers/Core/Users/UsersController.cs
+++ b/src/ClientServer/Controllers/Core/Users/UsersController.cs
@@ -289,6 +289,8 @@ namespace ClientServer.Controllers.Core.Users
 
             //frontend users sha pre encryption... we need to use this too!
             user.Password = PasswordHelper.GetHashV1(PasswordHelper.HashLikeFrontend(randomPassword));
+            //upgrade to newest hash version
+            user.AuthVersion = 1;
 
 
             try
diff --git a/src/ClientServer/Helpers/PasswordHelper.cs b/src/ClientServer/Helpers/PasswordHelper.cs
index 39a3f8fba5653d1d922934a5c347722c77c23b38..533c730d97d296e40a25775d8d3ef11151aa0d91 100644
--- a/src/ClientServer/Helpers/PasswordHelper.cs
+++ b/src/ClientServer/Helpers/PasswordHelper.cs
@@ -40,7 +40,7 @@ namespace ClientServer.Helpers
         /// returns the hash with the same hashing algorithm (SHA 512) as the frontend (e.g. to create a new user)
         /// </summary>
         /// <param name="pw"></param>
-        /// <returns></returns>
+        /// <returns>always the same length... (44 chars)</returns>
         public static string HashLikeFrontend(string pw)
         {
             string hash;