diff --git a/contracts/sei-tester/src/contract.rs b/contracts/sei-tester/src/contract.rs
index 567b31a..ea6d1c0 100644
--- a/contracts/sei-tester/src/contract.rs
+++ b/contracts/sei-tester/src/contract.rs
@@ -212,7 +212,10 @@ pub fn query(deps: Deps<SeiQueryWrapper>, _env: Env, msg: QueryMsg) -> StdResult
             contract_address,
             lookback_seconds,
         } => to_binary(&query_dex_twaps(deps, contract_address, lookback_seconds)?),
-        QueryMsg::OrderSimulation { order } => to_binary(&query_order_simulation(deps, order)?),
+        QueryMsg::OrderSimulation {
+            order,
+            contract_address,
+        } => to_binary(&query_order_simulation(deps, order, contract_address)?),
         QueryMsg::Epoch {} => to_binary(&query_epoch(deps)?),
         QueryMsg::GetOrders {
             contract_address,
@@ -265,9 +268,11 @@ pub fn query_dex_twaps(
 pub fn query_order_simulation(
     deps: Deps<SeiQueryWrapper>,
     order: Order,
+    contract_address: String,
 ) -> StdResult<OrderSimulationResponse> {
+    let contract_addr = deps.api.addr_validate(&contract_address)?;
     let querier = SeiQuerier::new(&deps.querier);
-    let res: OrderSimulationResponse = querier.query_order_simulation(order)?;
+    let res: OrderSimulationResponse = querier.query_order_simulation(order, contract_addr)?;
 
     Ok(res)
 }
diff --git a/contracts/sei-tester/src/msg.rs b/contracts/sei-tester/src/msg.rs
index bb107ce..dd50afe 100644
--- a/contracts/sei-tester/src/msg.rs
+++ b/contracts/sei-tester/src/msg.rs
@@ -99,6 +99,7 @@ pub enum QueryMsg {
     },
     OrderSimulation {
         order: Order,
+        contract_address: String,
     },
     Epoch {},
     GetOrders {
diff --git a/packages/sei-cosmwasm/Cargo.toml b/packages/sei-cosmwasm/Cargo.toml
index 892b6ca..6fdbcef 100644
--- a/packages/sei-cosmwasm/Cargo.toml
+++ b/packages/sei-cosmwasm/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sei-cosmwasm"
-version = "0.3.0"
+version = "0.4.1"
 edition = "2021"
 description = "Bindings and helpers for cosmwasm contracts to interact with sei blockchain"
 license = "Apache-2.0"
diff --git a/packages/sei-cosmwasm/README.md b/packages/sei-cosmwasm/README.md
index 77cbe4c..1063212 100644
--- a/packages/sei-cosmwasm/README.md
+++ b/packages/sei-cosmwasm/README.md
@@ -8,7 +8,7 @@ Add the sei-cosmwasm dependency to your smart contract's `Cargo.toml` file:
 
 ```toml
 [dependencies]
-sei-cosmwasm = { version = "0.3.0" }
+sei-cosmwasm = { version = "0.4.1" }
 ```
 
 ## Functionality
diff --git a/packages/sei-cosmwasm/src/querier.rs b/packages/sei-cosmwasm/src/querier.rs
index a7d8661..3d40939 100644
--- a/packages/sei-cosmwasm/src/querier.rs
+++ b/packages/sei-cosmwasm/src/querier.rs
@@ -60,10 +60,17 @@ impl<'a> SeiQuerier<'a> {
         self.querier.query(&request)
     }
 
-    pub fn query_order_simulation(&self, order: Order) -> StdResult<OrderSimulationResponse> {
+    pub fn query_order_simulation(
+        &self,
+        order: Order,
+        contract_address: Addr,
+    ) -> StdResult<OrderSimulationResponse> {
         let request = SeiQueryWrapper {
             route: SeiRoute::Dex,
-            query_data: SeiQuery::OrderSimulation { order },
+            query_data: SeiQuery::OrderSimulation {
+                contract_address,
+                order,
+            },
         }
         .into();
 
diff --git a/packages/sei-cosmwasm/src/query.rs b/packages/sei-cosmwasm/src/query.rs
index 3db14bc..c185128 100644
--- a/packages/sei-cosmwasm/src/query.rs
+++ b/packages/sei-cosmwasm/src/query.rs
@@ -1,4 +1,4 @@
-use cosmwasm_std::{Addr, CustomQuery};
+use cosmwasm_std::{Addr, CustomQuery, Decimal};
 use schemars::JsonSchema;
 use serde::{Deserialize, Serialize};
 
@@ -42,6 +42,7 @@ pub enum SeiQuery {
         id: u64,
     },
     OrderSimulation {
+        contract_address: Addr,
         order: Order,
     },
 }
@@ -85,5 +86,5 @@ pub struct GetOrderByIdResponse {
 /// OrderSimulationResponse is data format returned from OrderSimulation query
 #[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
 pub struct OrderSimulationResponse {
-    pub executed_quantity: String,
+    pub executed_quantity: Decimal,
 }