diff --git a/docs/changelog.md b/docs/changelog.md
index 994f7438..15ac8e12 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -4,6 +4,12 @@
 
 Requires libvips v8.7.4.
 
+#### v0.22.1 - TBD
+
+* Add `modulate` operation for brightness, saturation and hue.
+  [#1601](https://github.com/lovell/sharp/pull/1601)
+  [@Goues](https://github.com/Goues)
+
 #### v0.22.0 - 18<sup>th</sup> March 2019
 
 * Remove functions previously deprecated in v0.21.0:
diff --git a/docs/index.md b/docs/index.md
index a6a58cb9..821e4bab 100644
--- a/docs/index.md
+++ b/docs/index.md
@@ -124,6 +124,7 @@ the help and code contributions of the following people:
 * [Julian Aubourg](https://github.com/jaubourg)
 * [Keith Belovay](https://github.com/fromkeith)
 * [Michael B. Klein](https://github.com/mbklein)
+* [Jakub Michálek](https://github.com/Goues)
 
 Thank you!