diff --git a/ed_on_bls12_381/src/curves/tests.rs b/ed_on_bls12_381/src/curves/tests.rs
index 207331f..dd5473e 100644
--- a/ed_on_bls12_381/src/curves/tests.rs
+++ b/ed_on_bls12_381/src/curves/tests.rs
@@ -1,7 +1,7 @@
 use ark_algebra_test_templates::curves::*;
 use ark_ec::{AffineCurve, ProjectiveCurve};
 use ark_ff::Zero;
-use ark_std::str::FromStr;
+use ark_std::{ops::Mul, str::FromStr};
 
 use crate::*;
 
diff --git a/ed_on_bls12_381_bandersnatch/src/curves/tests.rs b/ed_on_bls12_381_bandersnatch/src/curves/tests.rs
index d836f64..626c3c4 100644
--- a/ed_on_bls12_381_bandersnatch/src/curves/tests.rs
+++ b/ed_on_bls12_381_bandersnatch/src/curves/tests.rs
@@ -1,7 +1,7 @@
 use ark_algebra_test_templates::curves::*;
 use ark_ec::{AffineCurve, ProjectiveCurve};
 use ark_ff::Zero;
-use ark_std::str::FromStr;
+use ark_std::{ops::Mul, str::FromStr};
 
 use crate::*;
 
diff --git a/ed_on_bn254/src/curves/tests.rs b/ed_on_bn254/src/curves/tests.rs
index 97943b0..bebe212 100644
--- a/ed_on_bn254/src/curves/tests.rs
+++ b/ed_on_bn254/src/curves/tests.rs
@@ -1,7 +1,7 @@
 use ark_algebra_test_templates::curves::*;
 use ark_ec::{AffineCurve, ProjectiveCurve};
 use ark_ff::Zero;
-use ark_std::str::FromStr;
+use ark_std::{ops::Mul, str::FromStr};
 
 use crate::*;