diff --git a/Cargo.lock b/Cargo.lock
index 28ddb78e1..ed7374627 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -448,6 +448,7 @@ version = "0.0.0"
 dependencies = [
  "bellman 0.1.0",
  "byteorder 1.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ff 0.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "pairing 0.14.2",
  "rand 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "sapling-crypto 0.0.1",
diff --git a/zcash_proofs/Cargo.toml b/zcash_proofs/Cargo.toml
index 68a4a4531..88cc5fbd2 100644
--- a/zcash_proofs/Cargo.toml
+++ b/zcash_proofs/Cargo.toml
@@ -8,6 +8,7 @@ authors = [
 [dependencies]
 bellman = { path = "../bellman" }
 byteorder = "1"
+ff = "0.4"
 pairing = { path = "../pairing" }
 rand = "0.4"
 sapling-crypto = { path = "../sapling-crypto" }
diff --git a/zcash_proofs/src/lib.rs b/zcash_proofs/src/lib.rs
index bdebdd634..55ae7618f 100644
--- a/zcash_proofs/src/lib.rs
+++ b/zcash_proofs/src/lib.rs
@@ -1,5 +1,6 @@
 extern crate bellman;
 extern crate byteorder;
+extern crate ff;
 extern crate pairing;
 extern crate rand;
 extern crate sapling_crypto;
diff --git a/zcash_proofs/src/sapling/prover.rs b/zcash_proofs/src/sapling/prover.rs
index f43dae73f..3a3511c4a 100644
--- a/zcash_proofs/src/sapling/prover.rs
+++ b/zcash_proofs/src/sapling/prover.rs
@@ -2,10 +2,8 @@ use bellman::groth16::{
     create_random_proof, verify_proof, Parameters, PreparedVerifyingKey, Proof,
 };
 use byteorder::{LittleEndian, ReadBytesExt};
-use pairing::{
-    bls12_381::{Bls12, Fr, FrRepr},
-    Field, PrimeField, PrimeFieldRepr,
-};
+use ff::{Field, PrimeField, PrimeFieldRepr};
+use pairing::bls12_381::{Bls12, Fr, FrRepr};
 use rand::{OsRng, Rand};
 use sapling_crypto::{
     circuit::{
diff --git a/zcash_proofs/src/sapling/verifier.rs b/zcash_proofs/src/sapling/verifier.rs
index e9a5f2f7d..e83c426f5 100644
--- a/zcash_proofs/src/sapling/verifier.rs
+++ b/zcash_proofs/src/sapling/verifier.rs
@@ -1,8 +1,6 @@
 use bellman::groth16::{verify_proof, PreparedVerifyingKey, Proof};
-use pairing::{
-    bls12_381::{Bls12, Fr},
-    Field,
-};
+use ff::Field;
+use pairing::bls12_381::{Bls12, Fr};
 use sapling_crypto::{
     circuit::multipack,
     jubjub::{edwards, FixedGenerators, JubjubBls12, Unknown},