diff --git a/Cargo.lock b/Cargo.lock
index feccf0c..44eb8a9 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -7534,6 +7534,7 @@ dependencies = [
  "sp-block-builder",
  "sp-blockchain",
  "sp-consensus-aura",
+ "sp-consensus-babe",
  "sp-core 21.0.0 (git+https://github.com/paritytech/polkadot-sdk?branch=release-polkadot-v1.1.0)",
  "sp-io 23.0.0 (git+https://github.com/paritytech/polkadot-sdk?branch=release-polkadot-v1.1.0)",
  "sp-keystore 0.27.0 (git+https://github.com/paritytech/polkadot-sdk?branch=release-polkadot-v1.1.0)",
diff --git a/Cargo.toml b/Cargo.toml
index 3485839..b326968 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -80,6 +80,7 @@ sp-api = { git = "https://github.com/paritytech/polkadot-sdk", branch = "release
 sp-block-builder = { git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.1.0", default-features = false }
 sp-blockchain = { git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.1.0" }
 sp-consensus-aura = { git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.1.0", default-features = false }
+sp-consensus-babe = { git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.1.0", default-features = false }
 sp-core = { version = "21.0.0", git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.1.0", default-features = false }
 sp-inherents = { git = "https://github.com/paritytech/polkadot-sdk", default-features = false, branch = "release-polkadot-v1.1.0" }
 sp-io = { version = "23.0.0", git = "https://github.com/paritytech/polkadot-sdk", branch = "release-polkadot-v1.1.0", default-features = false }
diff --git a/node/Cargo.toml b/node/Cargo.toml
index b6adfdc..acd8daa 100644
--- a/node/Cargo.toml
+++ b/node/Cargo.toml
@@ -49,6 +49,7 @@ sp-api = { workspace = true }
 sp-block-builder = { workspace = true }
 sp-blockchain = { workspace = true }
 sp-consensus-aura = { workspace = true }
+sp-consensus-babe = { workspace = true }
 sp-core = { workspace = true }
 sp-io = { workspace = true, optional = true }
 sp-keystore = { workspace = true }
diff --git a/node/src/chain_spec.rs b/node/src/chain_spec.rs
index 95ad7fc..571d146 100644
--- a/node/src/chain_spec.rs
+++ b/node/src/chain_spec.rs
@@ -291,10 +291,15 @@ pub mod devnet {
 				..Default::default()
 			},
 			transaction_payment: Default::default(),
-			babe: Some(BabeConfig { authorities: vec![] }),
-			grandpa: GrandpaConfig {
-				authorities: initial_authorities.iter().map(|x| (x.1.clone(), 1)).collect(),
+			babe: BabeConfig {
+				authorities: vec![],
+				epoch_config: Some(sp_consensus_babe::BabeEpochConfiguration {
+					c: (1, 4),
+					allowed_slots: sp_consensus_babe::AllowedSlots::PrimaryAndSecondaryPlainSlots,
+				}),
+				_config: std::marker::PhantomData,
 			},
+			grandpa: GrandpaConfig { authorities: vec![], _config: std::marker::PhantomData },
 		}
 	}
 }
diff --git a/runtime/devnet/src/lib.rs b/runtime/devnet/src/lib.rs
index 745b5fd..895099b 100644
--- a/runtime/devnet/src/lib.rs
+++ b/runtime/devnet/src/lib.rs
@@ -224,6 +224,13 @@ pub const UNIT: Balance = 1_000 * MILLIUNIT;
 
 pub const EXISTENTIAL_DEPOSIT: Balance = MILLIUNIT;
 
+// pub const PRIMARY_PROBABILITY: (u64, u64) = (1, 4);
+
+// pub const pub const BABE_GENESIS_EPOCH_CONFIG: sp_consensus_babe::BabeEpochConfiguration = sp_consensus_babe::BabeEpochConfiguration {
+// 	c: PRIMARY_PROBABILITY,
+// 	allowed_slots: sp_consensus_babe::AllowedSlots::PrimaryAndSecondaryPlainSlots,
+// };
+
 pub const fn deposit(items: u32, bytes: u32) -> Balance {
 	(items as Balance * 20 * UNIT + (bytes as Balance) * 100 * MICROUNIT) / 100
 }