diff --git a/README.md b/README.md
index 659992e5..142fe008 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 > A little book on [Ethereum](https://www.ethereum.org/) Development with [Go](https://golang.org/) (golang)
 
 <p align="center">
-  <img src="https://user-images.githubusercontent.com/168240/40767424-5863e30a-6467-11e8-8c96-7995652ade86.png" width="400" alt="Gopher" />
+  <img src="https://user-images.githubusercontent.com/168240/40767424-5863e30a-6467-11e8-8c96-7995652ade86.png" width="320" alt="Gopher" />
 </p>
 
 ## Note: This is a work in progress
diff --git a/en/README.md b/en/README.md
index 4758c97d..73b30d48 100644
--- a/en/README.md
+++ b/en/README.md
@@ -1,7 +1,7 @@
 # Ethereum Development with Go
 
 <p align="center">
-  <img src="https://user-images.githubusercontent.com/168240/40767424-5863e30a-6467-11e8-8c96-7995652ade86.png" width="400" alt="Gopher" />
+  <img src="https://user-images.githubusercontent.com/168240/40767424-5863e30a-6467-11e8-8c96-7995652ade86.png" width="320" alt="Gopher" />
 </p>
 
 **Note: this is a work in progress**