diff --git a/README.md b/README.md
index cb5b05a..29e2c24 100644
--- a/README.md
+++ b/README.md
@@ -1,5 +1,5 @@
 [![Build status](https://ci.appveyor.com/api/projects/status/l6ncuo9hwqiul36y/branch/master?svg=true)](https://ci.appveyor.com/project/tritemio/phconvert/branch/master)
-[![Tests](https://github.com/Photon-HDF5/phconvert/actions/workflows/tests.yml/badge.scg)](https://github.com/Photon-HDF5/phconvert/actions)
+[![Tests](https://github.com/Photon-HDF5/phconvert/actions/workflows/tests.yml/badge.svg)](https://github.com/Photon-HDF5/phconvert/actions)
 
 # phconvert