diff --git a/runtime/common/Cargo.toml b/runtime/common/Cargo.toml
index 02e19f2..572c2d8 100644
--- a/runtime/common/Cargo.toml
+++ b/runtime/common/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "runtime-common"
-version = "0.4.8"
+version = "0.4.9"
 authors.workspace = true
 edition.workspace = true
 homepage.workspace = true
diff --git a/runtime/common/src/lib.rs b/runtime/common/src/lib.rs
index 6982637..1ce8258 100644
--- a/runtime/common/src/lib.rs
+++ b/runtime/common/src/lib.rs
@@ -30,14 +30,14 @@ pub use sp_runtime::BuildStorage;
 
 pub use impls::ToAuthor;
 
-/// We assume that an on-initialize consumes 10% of the weight on average, hence
+/// We assume that an on-initialize consumes 15% of the weight on average, hence
 /// a single extrinsic will not be allowed to consume more than
-/// `AvailableBlockRatio - 10%`.
-pub const AVERAGE_ON_INITIALIZE_RATIO: Perbill = Perbill::from_percent(10);
+/// `AvailableBlockRatio - 15%`.
+pub const AVERAGE_ON_INITIALIZE_RATIO: Perbill = Perbill::from_percent(15);
 
-/// We allow `Normal` extrinsics to fill up the block up to 75%, the rest can
+/// We allow `Normal` extrinsics to fill up the block up to 70%, the rest can
 /// be used by `Operational` extrinsics.
-pub const NORMAL_DISPATCH_RATIO: Perbill = Perbill::from_percent(75);
+pub const NORMAL_DISPATCH_RATIO: Perbill = Perbill::from_percent(70);
 
 /// We allow for 4 seconds of compute with a 12 seconds average block time.
 /// The storage proof size is not limited so far.