diff --git a/Intro_to_Solid.md b/Intro_to_Solid.md
index 4522e8b..6811078 100644
--- a/Intro_to_Solid.md
+++ b/Intro_to_Solid.md
@@ -167,7 +167,7 @@ class FilePersistence(InvoicePersistence):
 Ok, we do a lot of things, let's make a UML to represent our class structure.
 
 <center>
-<img src="./assets/UML_Solid" alt=""  width="400"/>
+<img src="./assets/UML_Solid" alt=""  width="1000"/>
 </center>
 
 That will be more simple to do extension.