diff --git a/README.md b/README.md
index 449e9065..2e3c8f6b 100644
--- a/README.md
+++ b/README.md
@@ -18,7 +18,7 @@ What does it do?
 | Python 3.5 | ✅ | ✅ | ✅ | ✅ | ✅ |
 | Python 3.6 | ✅ | ✅ | ✅ | ✅ | ✅ |
 
-- Builds manylinux, macOS and Windows (32 and 64bit) wheels
+- Builds manylinux, macOS and Windows (32 and 64bit) wheels using Travis CI and Appveyor
 - Bundles shared library dependencies on Linux and macOS through [auditwheel](https://github.com/pypa/auditwheel) and [delocate](https://github.com/matthew-brett/delocate)
 - Runs the library test suite against the wheel-installed version of your library