diff --git a/SP-NixOS-diagrams/state-diagram.puml b/SP-NixOS-diagrams/state-diagram.puml
index 4304748..3f8fa25 100644
--- a/SP-NixOS-diagrams/state-diagram.puml
+++ b/SP-NixOS-diagrams/state-diagram.puml
@@ -39,7 +39,7 @@ state "SP NixOS" as sp_nixos {
      '/
 
     [*] --> clean_state : boot
-    clean_state --> modified_state : <u>change via API:\n""userdata.json""\n""sp-modules/flake.nix""\n""sp-modules/flake.lock""\n<u>NixOS upgrade:\n""flake.lock""\n
+    clean_state --> modified_state : <u>modify by API:\n""userdata.json""\n""sp-modules/flake.nix""\n<u>NixOS & SP modules update:\n""flake.lock""\n
     modified_state -u-> modified_state : \n\n\n\n\n\n\nnixos-rebuild switch\n<color:red>build\n<color:red>failure
     modified_state -u-> modified_state : nixos-rebuild switch\n<color:red>bootloader\n<color:red>update\n<color:red>failure
     modified_state -l-> new_profile_failed_activation_state : nixos-rebuild switch\n<color:red>activation\n<color:red>failure