diff --git a/README.md b/README.md
index d70eb35..da47d58 100644
--- a/README.md
+++ b/README.md
@@ -1619,7 +1619,7 @@ ________________________________________________________________________________
 <p align="center"><b>*BR-RTR *</b></p>
 
 <p align="center">
-  <img src="images/module3/firewall.png" width="600" />
+  <img src="images/module3/firewall.jpg" width="600" />
 </p>
 
 <p align="center">