diff --git a/Cargo.lock b/Cargo.lock
index a5b39407f..b16bd0694 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -2253,7 +2253,7 @@ dependencies = [
 
 [[package]]
 name = "hydra-dx-runtime"
-version = "3.0.0"
+version = "4.0.0"
 dependencies = [
  "frame-benchmarking",
  "frame-executive",
diff --git a/runtime/Cargo.toml b/runtime/Cargo.toml
index d88b4dd09..bc87cc362 100644
--- a/runtime/Cargo.toml
+++ b/runtime/Cargo.toml
@@ -5,7 +5,7 @@ homepage = 'https://github.com/galacticcouncil/hydradx-node'
 license = 'Unlicense'
 name = 'hydra-dx-runtime'
 repository = 'https://github.com/galacticcouncil/hydradx-node'
-version = '3.0.0'
+version = '4.0.0'
 
 [package.metadata.docs.rs]
 targets = ['x86_64-unknown-linux-gnu']
diff --git a/runtime/src/lib.rs b/runtime/src/lib.rs
index afea113a6..b50b1583e 100644
--- a/runtime/src/lib.rs
+++ b/runtime/src/lib.rs
@@ -131,7 +131,7 @@ pub const VERSION: RuntimeVersion = RuntimeVersion {
 	spec_name: create_runtime_str!("hydra-dx"),
 	impl_name: create_runtime_str!("hydra-dx"),
 	authoring_version: 1,
-	spec_version: 3,
+	spec_version: 4,
 	impl_version: 0,
 	apis: RUNTIME_API_VERSIONS,
 	transaction_version: 1,
@@ -436,8 +436,8 @@ impl pallet_authorship::Config for Runtime {
 pallet_staking_reward_curve::build! {
 	const REWARD_CURVE: PiecewiseLinear<'static> = curve!(
 		min_inflation: 0_040_000,
-		max_inflation: 0_120_000,
-		ideal_stake: 0_900_000,
+		max_inflation: 0_080_000,
+		ideal_stake: 0_160_000,
 		falloff: 1_000_000,
 		max_piece_count: 40,
 		test_precision: 0_005_000,