diff --git a/requirements.txt b/requirements.txt
index 679d3b84..de30ba82 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,4 +6,4 @@ cffsubr==0.3.0
 skia-pathops==0.8.0.post1
 
 # alternative UFO implementation
-ufoLib2[converters]==0.16.0
+ufoLib2==0.16.0