diff --git a/prdoc/pr_9939.prdoc b/prdoc/pr_9939.prdoc
new file mode 100644
index 0000000000000..2e44993105ef6
--- /dev/null
+++ b/prdoc/pr_9939.prdoc
@@ -0,0 +1,11 @@
+title: '[pallet-revive] dev-node constant fee multiplier'
+doc:
+- audience: Runtime Dev
+  description: |-
+    This will let us have stable gas cost (as long as the state of the dev net does not change)
+
+    In mainnet you can't rely on stable gas anyway since the state of the blockchain can change between two dry runs,
+    but we are probably better off if we have stable gas cost in testing environments.
+crates:
+- name: revive-dev-runtime
+  bump: patch
diff --git a/substrate/frame/revive/dev-node/runtime/src/lib.rs b/substrate/frame/revive/dev-node/runtime/src/lib.rs
index 34a18790a987c..682404befce90 100644
--- a/substrate/frame/revive/dev-node/runtime/src/lib.rs
+++ b/substrate/frame/revive/dev-node/runtime/src/lib.rs
@@ -37,7 +37,7 @@ use pallet_revive::{
 	},
 	AccountId32Mapper,
 };
-use pallet_transaction_payment::{FeeDetails, RuntimeDispatchInfo};
+use pallet_transaction_payment::{ConstFeeMultiplier, FeeDetails, Multiplier, RuntimeDispatchInfo};
 use polkadot_sdk::{
 	polkadot_sdk_frame::{
 		deps::sp_genesis_builder,
@@ -314,6 +314,7 @@ impl pallet_timestamp::Config for Runtime {}
 
 parameter_types! {
 	pub const TransactionByteFee: Balance = 10 * MILLICENTS;
+	pub FeeMultiplier: Multiplier = Multiplier::one();
 }
 
 // Implements the types required for the transaction payment pallet.
@@ -322,7 +323,7 @@ impl pallet_transaction_payment::Config for Runtime {
 	type OnChargeTransaction = pallet_transaction_payment::FungibleAdapter<Balances, ()>;
 	type WeightToFee = BlockRatioFee<1, 1, Self>;
 	type LengthToFee = ConstantMultiplier<Balance, TransactionByteFee>;
-	type FeeMultiplierUpdate = polkadot_sdk::polkadot_runtime_common::SlowAdjustingFeeUpdate<Self>;
+	type FeeMultiplierUpdate = ConstFeeMultiplier<FeeMultiplier>;
 }
 
 parameter_types! {