diff --git a/runtime/astar/Cargo.toml b/runtime/astar/Cargo.toml
index 800d60d544..5c3df5d917 100644
--- a/runtime/astar/Cargo.toml
+++ b/runtime/astar/Cargo.toml
@@ -341,8 +341,6 @@ evm-tracing = [
 	"moonbeam-rpc-primitives-txpool",
 ]
 
-experimental = ["pallet-aura/experimental"]
-
 # Enable metadata hash generation at compile time for the `CheckMetadataHash` extension.
 metadata-hash = ["substrate-wasm-builder?/metadata-hash"]
 
diff --git a/runtime/astar/src/lib.rs b/runtime/astar/src/lib.rs
index 3f818c0a6d..a9f264b8c1 100644
--- a/runtime/astar/src/lib.rs
+++ b/runtime/astar/src/lib.rs
@@ -29,8 +29,8 @@ use frame_support::{
     genesis_builder_helper::{build_config, create_default_config},
     parameter_types,
     traits::{
-        AsEnsureOriginWithArg, ConstBool, ConstU32, ConstU64, Contains, Currency, FindAuthor, Get,
-        Imbalance, InstanceFilter, Nothing, OnFinalize, OnUnbalanced, Randomness, WithdrawReasons,
+        AsEnsureOriginWithArg, ConstBool, ConstU32, Contains, Currency, FindAuthor, Get, Imbalance,
+        InstanceFilter, Nothing, OnFinalize, OnUnbalanced, Randomness, WithdrawReasons,
     },
     weights::{
         constants::{
@@ -490,8 +490,6 @@ impl pallet_aura::Config for Runtime {
     type DisabledValidators = ();
     type MaxAuthorities = ConstU32<250>;
     type AllowMultipleBlocksPerSlot = ConstBool<false>;
-    #[cfg(feature = "experimental")]
-    type SlotDuration = ConstU64<SLOT_DURATION>;
 }
 
 impl cumulus_pallet_aura_ext::Config for Runtime {}
diff --git a/runtime/local/Cargo.toml b/runtime/local/Cargo.toml
index 2dbfd1fea6..1ac76bd3f9 100644
--- a/runtime/local/Cargo.toml
+++ b/runtime/local/Cargo.toml
@@ -276,8 +276,6 @@ evm-tracing = [
 	"moonbeam-rpc-primitives-txpool",
 ]
 
-experimental = ["pallet-aura/experimental"]
-
 # Enable metadata hash generation at compile time for the `CheckMetadataHash` extension.
 metadata-hash = ["substrate-wasm-builder?/metadata-hash"]
 
diff --git a/runtime/local/src/lib.rs b/runtime/local/src/lib.rs
index 4bd75abf2e..030daa7280 100644
--- a/runtime/local/src/lib.rs
+++ b/runtime/local/src/lib.rs
@@ -270,8 +270,6 @@ impl pallet_aura::Config for Runtime {
     type DisabledValidators = ();
     type MaxAuthorities = ConstU32<50>;
     type AllowMultipleBlocksPerSlot = ConstBool<false>;
-    #[cfg(feature = "experimental")]
-    type SlotDuration = ConstU64<SLOT_DURATION>;
 }
 
 impl pallet_grandpa::Config for Runtime {
diff --git a/runtime/shibuya/Cargo.toml b/runtime/shibuya/Cargo.toml
index 81ff9dbd23..35dd3e2dae 100644
--- a/runtime/shibuya/Cargo.toml
+++ b/runtime/shibuya/Cargo.toml
@@ -388,8 +388,6 @@ evm-tracing = [
 	"moonbeam-rpc-primitives-txpool",
 ]
 
-experimental = ["pallet-aura/experimental"]
-
 # Enable metadata hash generation at compile time for the `CheckMetadataHash` extension.
 metadata-hash = ["substrate-wasm-builder?/metadata-hash"]
 
diff --git a/runtime/shibuya/src/lib.rs b/runtime/shibuya/src/lib.rs
index b575d42ab8..ed8503cb9e 100644
--- a/runtime/shibuya/src/lib.rs
+++ b/runtime/shibuya/src/lib.rs
@@ -31,7 +31,7 @@ use frame_support::{
     traits::{
         fungible::HoldConsideration,
         tokens::{PayFromAccount, UnityAssetBalanceConversion},
-        AsEnsureOriginWithArg, ConstBool, ConstU128, ConstU32, ConstU64, Contains, Currency,
+        AsEnsureOriginWithArg, ConstBool, ConstU128, ConstU32, Contains, Currency,
         EqualPrivilegeOnly, FindAuthor, Get, Imbalance, InstanceFilter, LinearStoragePrice,
         Nothing, OnFinalize, OnUnbalanced, WithdrawReasons,
     },
@@ -566,8 +566,6 @@ impl pallet_aura::Config for Runtime {
     type DisabledValidators = ();
     type MaxAuthorities = ConstU32<250>;
     type AllowMultipleBlocksPerSlot = ConstBool<false>;
-    #[cfg(feature = "experimental")]
-    type SlotDuration = ConstU64<SLOT_DURATION>;
 }
 
 impl cumulus_pallet_aura_ext::Config for Runtime {}
diff --git a/runtime/shiden/Cargo.toml b/runtime/shiden/Cargo.toml
index d671814b0d..56fddfdeef 100644
--- a/runtime/shiden/Cargo.toml
+++ b/runtime/shiden/Cargo.toml
@@ -346,8 +346,6 @@ evm-tracing = [
 	"moonbeam-rpc-primitives-txpool",
 ]
 
-experimental = ["pallet-aura/experimental"]
-
 # Enable metadata hash generation at compile time for the `CheckMetadataHash` extension.
 metadata-hash = ["substrate-wasm-builder?/metadata-hash"]
 
diff --git a/runtime/shiden/src/lib.rs b/runtime/shiden/src/lib.rs
index 59af67af1a..8fa2b6030b 100644
--- a/runtime/shiden/src/lib.rs
+++ b/runtime/shiden/src/lib.rs
@@ -29,8 +29,8 @@ use frame_support::{
     genesis_builder_helper::{build_config, create_default_config},
     parameter_types,
     traits::{
-        AsEnsureOriginWithArg, ConstBool, ConstU32, ConstU64, Contains, Currency, FindAuthor, Get,
-        Imbalance, InstanceFilter, Nothing, OnFinalize, OnUnbalanced, WithdrawReasons,
+        AsEnsureOriginWithArg, ConstBool, ConstU32, Contains, Currency, FindAuthor, Get, Imbalance,
+        InstanceFilter, Nothing, OnFinalize, OnUnbalanced, WithdrawReasons,
     },
     weights::{
         constants::{
@@ -529,8 +529,6 @@ impl pallet_aura::Config for Runtime {
     type DisabledValidators = ();
     type MaxAuthorities = ConstU32<250>;
     type AllowMultipleBlocksPerSlot = ConstBool<false>;
-    #[cfg(feature = "experimental")]
-    type SlotDuration = ConstU64<SLOT_DURATION>;
 }
 
 impl cumulus_pallet_aura_ext::Config for Runtime {}