diff --git a/README.md b/README.md
index cf6c8e8..f3640a9 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 Small [Go](http://golang.org) package for fast high-level image processing using [libvips](https://github.com/jcupitt/libvips) via C bindings, providing a simple [programmatic API](#examples).
 
-bimg was designed to be a small and efficient library supporting common [image operations](#supported-image-operations) such as crop, resize, rotate, zoom or watermark. It can read JPEG, PNG, WEBP natively, and optionally TIFF, PDF, GIF and SVG formats if `libvips@8.3+` is compiled with proper library bindings.
+bimg was designed to be a small and efficient library supporting common [image operations](#supported-image-operations) such as crop, resize, rotate, zoom or watermark. It can read JPEG, PNG, WEBP natively, and optionally TIFF, PDF, GIF and SVG formats if `libvips@8.3+` is compiled with proper library bindings. Lastly AVIF is supported as of `libvips@8.9+`. For AVIF support `libheif` needs to be [compiled with an applicable AVIF en-/decoder](https://github.com/strukturag/libheif#compiling).
 
 bimg is able to output images as JPEG, PNG and WEBP formats, including transparent conversion across them.
 
@@ -53,7 +53,9 @@ If you're using `gopkg.in`, you can still rely in the `v0` without worrying abou
 - C compatible compiler such as gcc 4.6+ or clang 3.0+
 - Go 1.3+
 
-**Note**: `libvips` v8.3+ is required for GIF, PDF and SVG support.
+**Note**: 
+ * `libvips` v8.3+ is required for GIF, PDF and SVG support.
+ * `libvips` v8.9+ is required for AVIF support. `libheif` compiled with a AVIF en-/decoder also needs to be present.
 
 ## Installation