diff --git a/doc/uml/backend.png b/doc/uml/backend.png
index 158b92691a3807ff638eff4f75678a9be399e609..f03ee1fdd59bb9efef85a319fb6772c688f68a8d 100644
Binary files a/doc/uml/backend.png and b/doc/uml/backend.png differ
diff --git a/doc/uml/services.png b/doc/uml/services.png
index 7bdbc4df1c3849f947b3cbbf3b810b081374829e..fa2287997a8fb761142da8c2f1b8a16a28515ab9 100644
Binary files a/doc/uml/services.png and b/doc/uml/services.png differ
diff --git a/doc/uml/services.pu b/doc/uml/services.pu
index 68e20bb9c4947d8f0bf243b6a29b09548ab34cb9..7811ff112bc8c7d9571d3466c02c2539a4285ac7 100644
--- a/doc/uml/services.pu
+++ b/doc/uml/services.pu
@@ -21,7 +21,7 @@ class TransactionsService << (S,cyan) >>  {
     rollback_transactions()
 }
 
-class IdentitiesService << (S,cyan) >> {
+class RegistryService << (S,cyan) >> {
     handle_new_block()
 }