diff --git a/zebra-chain/src/addresses/sapling.rs b/zebra-chain/src/addresses/sapling.rs
index 09ba5076..6353efa4 100644
--- a/zebra-chain/src/addresses/sapling.rs
+++ b/zebra-chain/src/addresses/sapling.rs
@@ -8,7 +8,7 @@ use std::{
 use bech32::{self, FromBase32, ToBase32};
 
 #[cfg(test)]
-use proptest::{arbitrary::Arbitrary, array, prelude::*};
+use proptest::prelude::*;
 
 use crate::{
     keys::sapling,
diff --git a/zebra-chain/src/addresses/sprout.rs b/zebra-chain/src/addresses/sprout.rs
index b4ef73ce..018898d4 100644
--- a/zebra-chain/src/addresses/sprout.rs
+++ b/zebra-chain/src/addresses/sprout.rs
@@ -145,8 +145,6 @@ impl Arbitrary for SproutShieldedAddress {
 #[cfg(test)]
 mod tests {
 
-    use std::str::FromStr;
-
     use super::*;
 
     #[test]
diff --git a/zebra-chain/src/transaction/joinsplit.rs b/zebra-chain/src/transaction/joinsplit.rs
index 46eda637..609b60f5 100644
--- a/zebra-chain/src/transaction/joinsplit.rs
+++ b/zebra-chain/src/transaction/joinsplit.rs
@@ -5,8 +5,6 @@ use std::{
 
 #[cfg(test)]
 use proptest::{array, collection::vec, prelude::*};
-#[cfg(test)]
-use proptest_derive::Arbitrary;
 
 use crate::{
     proofs::ZkSnarkProof,