diff --git a/README.md b/README.md
index 1f596e8..33f6bc3 100644
--- a/README.md
+++ b/README.md
@@ -6,7 +6,7 @@ Identifying transitional states is crucial for understanding protein conformatio
 
 ### Illustration
 
-![figure](./docs/figs/fig1.png)
+![figure](./docs/figs/fig2.png)
 
 ## System requires