diff --git a/src/single.rs b/src/single.rs
index e6f20d9..1f255e4 100644
--- a/src/single.rs
+++ b/src/single.rs
@@ -24,7 +24,7 @@
 //!  https://github.com/poanetwork/hbbft/blob/38178af1244ddeca27f9d23750ca755af6e886ee/src/crypto/serde_impl.rs#L95
 
 use pairing::{CurveAffine, CurveProjective, Field};  // Engine, PrimeField, SqrtField
-use rand::{Rand, Rng, thread_rng};
+use rand::{Rng, thread_rng};
 // use rand::prelude::*; // ThreadRng,thread_rng
 // use rand_chacha::ChaChaRng;
 
diff --git a/src/verifiers.rs b/src/verifiers.rs
index 2faeb38..5687d58 100644
--- a/src/verifiers.rs
+++ b/src/verifiers.rs
@@ -8,7 +8,6 @@ use std::collections::HashMap;
 // use std::hash::Hash;  // Hasher
 
 use pairing::{CurveAffine, CurveProjective};  // Engine, Field, PrimeField, SqrtField
-use rand::{Rand, Rng};
 
 use super::*;