diff --git a/README.md b/README.md
index c79b6229..1a73b7e0 100644
--- a/README.md
+++ b/README.md
@@ -320,6 +320,7 @@ Here are some repos that use cibuildwheel.
 - [websockets](https://github.com/aaugustin/websockets)
 - [Parselmouth](https://github.com/YannickJadoul/Parselmouth)
 - [python-admesh](https://github.com/admesh/python-admesh)
+- [pybase64](https://github.com/mayeut/pybase64)
 
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