diff --git a/README.md b/README.md
index 5163824f0a..eec486fdb2 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
 ![LICENSE](https://img.shields.io/badge/license-Apache--2.0-brightgreen.svg)
 ![Language](https://img.shields.io/badge/language-C%2B%2B-blue.svg)
-![Release](https://img.shields.io/badge/Release-v0.5.0-orange)
+![Release](https://img.shields.io/badge/Release-v0.5.0-orange.svg)
 # Milvus is coming soon!