diff --git a/README.md b/README.md
index ca722a1..3aa94f7 100644
--- a/README.md
+++ b/README.md
@@ -151,6 +151,7 @@ There's a [Rust wrapper](https://crates.io/crates/signalsmith-stretch) by [Colin
 We'd like to particularly thank the following people who sponsored specific features or improvements:
 
 * **Future Audio Workshop**: chunked-computation mode
+* **Jochem de Jong**: formant shifting/compensation
 * **Metronaut**: web audio (JS/WASM) release
 * **Daniel L Bowling** and the Stanford School of Medicine: web audio improvements