diff --git a/README.md b/README.md
index f46b7723..42ecc646 100644
--- a/README.md
+++ b/README.md
@@ -63,7 +63,7 @@ readableStream
   .pipe(writableStream);
 ```
 
-[![Test Coverage](https://coveralls.io/repos/lovell/sharp/badge.png?branch=master)](https://coveralls.io/r/lovell/sharp?branch=master)
+[![Test Coverage](https://coveralls.io/repos/lovell/sharp/badge.svg?branch=master)](https://coveralls.io/r/lovell/sharp?branch=master)
 
 ### Documentation