diff --git a/pallas-primitives/src/alonzo/model.rs b/pallas-primitives/src/alonzo/model.rs
index 1af99f5..7bbc254 100644
--- a/pallas-primitives/src/alonzo/model.rs
+++ b/pallas-primitives/src/alonzo/model.rs
@@ -768,7 +768,7 @@ pub struct VKeyWitness {
     pub signature: Bytes,
 }
 
-#[derive(Serialize, Deserialize, Debug, PartialEq, Clone)]
+#[derive(Serialize, Deserialize, Debug, PartialEq, Eq, Clone)]
 pub enum NativeScript {
     ScriptPubkey(AddrKeyhash),
     ScriptAll(Vec<NativeScript>),
diff --git a/pallas-primitives/src/babbage/model.rs b/pallas-primitives/src/babbage/model.rs
index 759dce8..a624fe1 100644
--- a/pallas-primitives/src/babbage/model.rs
+++ b/pallas-primitives/src/babbage/model.rs
@@ -313,7 +313,7 @@ impl<'a> From<MintedTransactionBody<'a>> for TransactionBody {
     }
 }
 
-#[derive(Debug, PartialEq, Clone)]
+#[derive(Debug, PartialEq, Eq, Clone)]
 pub enum PseudoTransactionOutput<T> {
     Legacy(LegacyTransactionOutput),
     PostAlonzo(T),
@@ -368,7 +368,7 @@ impl<'b> From<MintedTransactionOutput<'b>> for TransactionOutput {
     }
 }
 
-#[derive(Encode, Decode, Debug, PartialEq, Clone)]
+#[derive(Encode, Decode, Debug, PartialEq, Eq, Clone)]
 #[cbor(map)]
 pub struct PseudoPostAlonzoTransactionOutput<T1, T2> {
     #[n(0)]
diff --git a/pallas-primitives/src/conway/model.rs b/pallas-primitives/src/conway/model.rs
index da38e3c..5a7587d 100644
--- a/pallas-primitives/src/conway/model.rs
+++ b/pallas-primitives/src/conway/model.rs
@@ -1179,7 +1179,7 @@ impl<C> minicbor::Encode<C> for GovActionId {
     }
 }
 
-#[derive(Debug, PartialEq, Clone)]
+#[derive(Debug, PartialEq, Eq, Clone)]
 pub enum PseudoTransactionOutput<T> {
     Legacy(LegacyTransactionOutput),
     PostAlonzo(T),