diff --git a/README.md b/README.md
index 5ba43f3..5c4daed 100644
--- a/README.md
+++ b/README.md
@@ -12,3 +12,4 @@
 ## formulas
 - `cx-llvm` *(22.1.1)*
 - `game-porting-toolkit` *(1.1)*
+- `libinotify-kqueue` *(20211018)*