diff --git a/ed_on_bls12_381/src/curves/mod.rs b/ed_on_bls12_381/src/curves/mod.rs
index 103438f..affbba0 100644
--- a/ed_on_bls12_381/src/curves/mod.rs
+++ b/ed_on_bls12_381/src/curves/mod.rs
@@ -3,7 +3,7 @@ use ark_ec::{
     models::{ModelParameters, MontgomeryModelParameters, TEModelParameters},
     twisted_edwards_extended::{GroupAffine, GroupProjective},
 };
-use ark_ff::{biginteger::BigInteger256, field_new};
+use ark_ff::field_new;
 
 #[cfg(test)]
 mod tests;
@@ -11,21 +11,6 @@ mod tests;
 pub type EdwardsAffine = GroupAffine<EdwardsParameters>;
 pub type EdwardsProjective = GroupProjective<EdwardsParameters>;
 
-#[rustfmt::skip]
-const GENERATOR_X: Fq = field_new!(Fq, BigInteger256([
-    14080349899812819339,
-    4104857150246327429,
-    8293216003873356624,
-    7400363483732984990,
-]));
-#[rustfmt::skip]
-const GENERATOR_Y: Fq = field_new!(Fq, BigInteger256([
-    13388310974700241893,
-    7654361511478576605,
-    8037907163910805792,
-    5188938133920569885,
-]));
-
 /// `JubJub` is a twisted Edwards curve. These curves have equations of the
 /// form: ax² + y² = 1 - dx²y².
 /// over some base finite field Fq.
@@ -58,21 +43,11 @@ impl ModelParameters for EdwardsParameters {
 impl TEModelParameters for EdwardsParameters {
     /// COEFF_A = -1
     #[rustfmt::skip]
-    const COEFF_A: Fq = field_new!(Fq, BigInteger256([
-        18446744060824649731,
-        18102478225614246908,
-        11073656695919314959,
-        6613806504683796440,
-    ]));
+    const COEFF_A: Fq = field_new!(Fq, "-1");
 
     /// COEFF_D = (10240/10241) mod q
     #[rustfmt::skip]
-    const COEFF_D: Fq = field_new!(Fq, BigInteger256([
-        3049539848285517488,
-        18189135023605205683,
-        8793554888777148625,
-        6339087681201251886,
-    ]));
+    const COEFF_D: Fq = field_new!(Fq, "19257038036680949359750312669786877991949435402254120286184196891950884077233");
 
     /// COFACTOR = 8
     const COFACTOR: &'static [u64] = &[8];
@@ -80,12 +55,7 @@ impl TEModelParameters for EdwardsParameters {
     /// COFACTOR^(-1) mod r =
     /// 819310549611346726241370945440405716213240158234039660170669895299022906775
     #[rustfmt::skip]
-    const COFACTOR_INV: Fr = field_new!(Fr, BigInteger256([
-        6832491983681988242,
-        12911748493335322362,
-        17523939349049608702,
-        217463794347581613,
-    ]));
+    const COFACTOR_INV: Fr = field_new!(Fr, "819310549611346726241370945440405716213240158234039660170669895299022906775");
 
     /// AFFINE_GENERATOR_COEFFS = (GENERATOR_X, GENERATOR_Y)
     const AFFINE_GENERATOR_COEFFS: (Self::BaseField, Self::BaseField) = (GENERATOR_X, GENERATOR_Y);
@@ -100,22 +70,17 @@ impl TEModelParameters for EdwardsParameters {
 }
 
 impl MontgomeryModelParameters for EdwardsParameters {
-    /// COEFF_A = 0xA002
+    /// COEFF_A = 40962
     #[rustfmt::skip]
-    const COEFF_A: Fq = field_new!(Fq, BigInteger256([
-        388496971701930u64,
-        6855257088226130262u64,
-        553476580979119549u64,
-        6516741293351590684u64,
-    ]));
-    /// COEFF_B = 0x73EDA753299D7D483339D80809A1D80553BDA402FFFE5BFEFFFFFFFEFFFF5FFD
+    const COEFF_A: Fq = field_new!(Fq, "40962");
+    /// COEFF_B = -40964
     #[rustfmt::skip]
-    const COEFF_B: Fq = field_new!(Fq, BigInteger256([
-        18446355550968045916u64,
-        10902955289292811939u64,
-        3147092737149958754u64,
-        6710871716016002197u64,
-    ]));
+    const COEFF_B: Fq = field_new!(Fq, "-40964");
 
     type TEModelParameters = EdwardsParameters;
 }
+
+#[rustfmt::skip]
+const GENERATOR_X: Fq = field_new!(Fq, "8076246640662884909881801758704306714034609987455869804520522091855516602923");
+#[rustfmt::skip]
+const GENERATOR_Y: Fq = field_new!(Fq, "13262374693698910701929044844600465831413122818447359594527400194675274060458");