diff --git a/zebra-chain/src/proofs/bctv14.rs b/zebra-chain/src/proofs/bctv14.rs
index 5a52f9b6..dd5c99a7 100644
--- a/zebra-chain/src/proofs/bctv14.rs
+++ b/zebra-chain/src/proofs/bctv14.rs
@@ -1,8 +1,5 @@
 use std::{fmt, io};
 
-#[cfg(test)]
-use proptest::{arbitrary::Arbitrary, collection::vec, prelude::*};
-
 use crate::serialization::{SerializationError, ZcashDeserialize, ZcashSerialize};
 
 /// An encoding of a BCTV14 proof, as used in Zcash.
@@ -51,6 +48,9 @@ impl ZcashDeserialize for Bctv14Proof {
     }
 }
 
+#[cfg(test)]
+use proptest::{arbitrary::Arbitrary, collection::vec, prelude::*};
+
 #[cfg(test)]
 impl Arbitrary for Bctv14Proof {
     type Parameters = ();
diff --git a/zebra-chain/src/proofs/groth16.rs b/zebra-chain/src/proofs/groth16.rs
index 724fea56..6fd9a4b9 100644
--- a/zebra-chain/src/proofs/groth16.rs
+++ b/zebra-chain/src/proofs/groth16.rs
@@ -1,8 +1,5 @@
 use std::{fmt, io};
 
-#[cfg(test)]
-use proptest::{arbitrary::Arbitrary, collection::vec, prelude::*};
-
 use crate::serialization::{SerializationError, ZcashDeserialize, ZcashSerialize};
 
 /// An encoding of a Groth16 proof, as used in Zcash.
@@ -51,6 +48,9 @@ impl ZcashDeserialize for Groth16Proof {
     }
 }
 
+#[cfg(test)]
+use proptest::{arbitrary::Arbitrary, collection::vec, prelude::*};
+
 #[cfg(test)]
 impl Arbitrary for Groth16Proof {
     type Parameters = ();
diff --git a/zebra-chain/src/transaction/shielded_data.rs b/zebra-chain/src/transaction/shielded_data.rs
index a80c1494..0d1cfa33 100644
--- a/zebra-chain/src/transaction/shielded_data.rs
+++ b/zebra-chain/src/transaction/shielded_data.rs
@@ -1,8 +1,10 @@
 use std::{fmt, io};
 
 use futures::future::Either;
+
 #[cfg(test)]
 use proptest::{arbitrary::Arbitrary, array, collection::vec, prelude::*};
+
 #[cfg(test)]
 use proptest_derive::Arbitrary;
 
diff --git a/zebra-chain/src/types.rs b/zebra-chain/src/types.rs
index f2430a9b..60ae4f28 100644
--- a/zebra-chain/src/types.rs
+++ b/zebra-chain/src/types.rs
@@ -8,8 +8,7 @@ use std::{
 use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt};
 use chrono::{DateTime, TimeZone, Utc};
 use hex;
-#[cfg(test)]
-use proptest::prelude::*;
+
 #[cfg(test)]
 use proptest_derive::Arbitrary;
 
@@ -126,6 +125,9 @@ impl ZcashDeserialize for Script {
     }
 }
 
+#[cfg(test)]
+use proptest::prelude::*;
+
 #[cfg(test)]
 mod tests {
     use super::*;