diff --git a/Cargo.toml b/Cargo.toml
index 852a0da..1b7dfcf 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,5 +18,5 @@ crossbeam = "0.3"
 pairing = "0.13"
 
 [features]
-default = ["u128-support"]
+default = []
 u128-support = ["pairing/u128-support"]