diff --git a/README.md b/README.md
index f18659efc..a9254b891 100644
--- a/README.md
+++ b/README.md
@@ -55,7 +55,7 @@ Iosevka supports Language-Specific Ligations, which is the ligation set enabled
 
 To build Iosevka you should:
 
-1. Ensure that [`nodejs`](http://nodejs.org) (≥ 12.16.0), [`ttfautohint`](http://www.freetype.org/ttfautohint/), [`otfcc`](https://github.com/caryll/otfcc) (≥ 0.9.3) and `otf2otc` are present.
+1. Ensure that [`nodejs`](http://nodejs.org) (≥ 12.16.0), [`ttfautohint`](http://www.freetype.org/ttfautohint/), [`otfcc`](https://github.com/caryll/otfcc) (≥ 0.10.3-alpha) and `otf2otc` are present.
 2. Install necessary libs by `npm install`. If you’ve installed them, upgrade to the latest.
 3. `npm run build -- contents::iosevka`.