diff --git a/Cargo.lock b/Cargo.lock
index f341246ed..533b3d9b0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -11663,6 +11663,7 @@ dependencies = [
  "nimbus-primitives",
  "parity-scale-codec",
  "scale-info",
+ "serde",
  "sp-application-crypto",
  "sp-consensus-aura",
  "sp-core",
diff --git a/primitives/session-keys/Cargo.toml b/primitives/session-keys/Cargo.toml
index 13db2a982..6d8d47192 100644
--- a/primitives/session-keys/Cargo.toml
+++ b/primitives/session-keys/Cargo.toml
@@ -12,6 +12,7 @@ manta-primitives = { path = "../manta", default-features = false }
 nimbus-primitives = { git = "https://github.com/manta-network/nimbus.git", tag = "v4.0.8", default-features = false }
 parity-scale-codec = { version = "3.4.0", default-features = false, features = ["derive"] }
 scale-info = { version = "2.1.2", default-features = false, features = ["derive"] }
+serde = { version = "1.0.140", features = ['derive'], optional = true }
 sp-application-crypto = { git = "https://github.com/paritytech/substrate.git", branch = "polkadot-v0.9.37", default-features = false }
 sp-consensus-aura = { git = "https://github.com/paritytech/substrate.git", default-features = false, branch = "polkadot-v0.9.37" }
 sp-core = { git = "https://github.com/paritytech/substrate.git", default-features = false, branch = "polkadot-v0.9.37" }
@@ -26,6 +27,7 @@ std = [
   "nimbus-primitives/std",
   "parity-scale-codec/std",
   "scale-info/std",
+  "serde",
   "sp-application-crypto/std",
   "sp-consensus-aura/std",
   "sp-core/std",
diff --git a/primitives/session-keys/src/vrf.rs b/primitives/session-keys/src/vrf.rs
index 278e5dd24..46bd95b0b 100644
--- a/primitives/session-keys/src/vrf.rs
+++ b/primitives/session-keys/src/vrf.rs
@@ -20,6 +20,7 @@ use sp_application_crypto::KeyTypeId;
 use sp_runtime::{BoundToRuntimeAppPublic, ConsensusEngineId};
 
 /// Implementation of [`BoundToRuntimeAppPublic`] with the public key set to [`VrfId`]
+#[cfg_attr(feature = "std", derive(serde::Serialize, serde::Deserialize))]
 #[derive(Clone, Copy, Debug, Default, Eq, Hash, Ord, PartialEq, PartialOrd)]
 pub struct VrfSessionKey;
 
diff --git a/runtime/calamari/src/nimbus_session_adapter.rs b/runtime/calamari/src/nimbus_session_adapter.rs
index 0d7fb0f3a..ccaa6089b 100644
--- a/runtime/calamari/src/nimbus_session_adapter.rs
+++ b/runtime/calamari/src/nimbus_session_adapter.rs
@@ -51,6 +51,7 @@ impl<T: Config> OneSessionHandler<T::AccountId> for AuthorInherentWithNoOpSessio
 
 /// This adapts VrfSessionKey to be compatible with pallet session
 /// making it suitable as a SessionKey entry
+#[cfg_attr(feature = "std", derive(serde::Serialize, serde::Deserialize))]
 pub struct VrfWithNoOpSession(pub VrfSessionKey);
 
 impl BoundToRuntimeAppPublic for VrfWithNoOpSession {
diff --git a/runtime/manta/src/nimbus_session_adapter.rs b/runtime/manta/src/nimbus_session_adapter.rs
index 0d7fb0f3a..ccaa6089b 100644
--- a/runtime/manta/src/nimbus_session_adapter.rs
+++ b/runtime/manta/src/nimbus_session_adapter.rs
@@ -51,6 +51,7 @@ impl<T: Config> OneSessionHandler<T::AccountId> for AuthorInherentWithNoOpSessio
 
 /// This adapts VrfSessionKey to be compatible with pallet session
 /// making it suitable as a SessionKey entry
+#[cfg_attr(feature = "std", derive(serde::Serialize, serde::Deserialize))]
 pub struct VrfWithNoOpSession(pub VrfSessionKey);
 
 impl BoundToRuntimeAppPublic for VrfWithNoOpSession {