diff --git a/CHANGELOG.md b/CHANGELOG.md
index 61f036142..b0688ed36 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -12,6 +12,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Added unified configuration for the Node with a new set of environment variables.
 - Added `cartesi-rollups-cli` binary to help develop and debug the Cartesi Rollups node
 
+### Changed
+
+- Change from `DAPP_DEPLOY_BLOCK_HASH` to `DAPP_DEPLOYMENT_BLOCK_NUMBER`.
+
 ## [1.2.0]
 
 ### Added
diff --git a/offchain/dispatcher/src/setup.rs b/offchain/dispatcher/src/setup.rs
index 015ff20ce..118381c40 100644
--- a/offchain/dispatcher/src/setup.rs
+++ b/offchain/dispatcher/src/setup.rs
@@ -5,7 +5,7 @@ use eth_state_client_lib::{
     config::SCConfig, error::StateServerError, BlockServer,
     GrpcStateFoldClient, StateServer,
 };
-use eth_state_fold_types::{ethereum_types::H256, BlockStreamItem};
+use eth_state_fold_types::{ethereum_types::U64, BlockStreamItem};
 use rollups_events::DAppMetadata;
 use snafu::ResultExt;
 use tokio_stream::{Stream, StreamExt};
@@ -80,15 +80,10 @@ pub async fn create_context(
     dapp_metadata: DAppMetadata,
     metrics: DispatcherMetrics,
 ) -> Result<Context, DispatcherError> {
-    let dapp_deploy_block_hash = H256(
-        config
-            .blockchain_config
-            .dapp_deploy_block_hash
-            .clone()
-            .into_inner(),
-    );
+    let dapp_deployment_block_number =
+        U64::from(config.blockchain_config.dapp_deployment_block_number);
     let genesis_timestamp: u64 = block_server
-        .query_block(dapp_deploy_block_hash)
+        .query_block(dapp_deployment_block_number)
         .await
         .context(StateServerSnafu)?
         .timestamp
diff --git a/offchain/types/src/blockchain_config.rs b/offchain/types/src/blockchain_config.rs
index e6a955370..e880e1260 100644
--- a/offchain/types/src/blockchain_config.rs
+++ b/offchain/types/src/blockchain_config.rs
@@ -2,7 +2,7 @@
 // SPDX-License-Identifier: Apache-2.0 (see LICENSE)
 
 use clap::{command, Parser};
-use rollups_events::{Address, Hash};
+use rollups_events::Address;
 use serde::{de::DeserializeOwned, Deserialize};
 use snafu::{ResultExt, Snafu};
 use std::{fs::File, io::BufReader, path::PathBuf};
@@ -35,9 +35,9 @@ pub struct BlockchainCLIConfig {
     #[arg(long, env)]
     pub dapp_address: Option<String>,
 
-    /// DApp deploy block hash
+    /// DApp deployment block number
     #[arg(long, env)]
-    pub dapp_deploy_block_hash: Option<String>,
+    pub dapp_deployment_block_number: Option<u64>,
 
     /// History contract address
     #[arg(long, env)]
@@ -63,7 +63,7 @@ pub struct BlockchainCLIConfig {
 #[derive(Clone, Debug)]
 pub struct BlockchainConfig {
     pub dapp_address: Address,
-    pub dapp_deploy_block_hash: Hash,
+    pub dapp_deployment_block_number: u64,
     pub history_address: Address,
     pub authority_address: Address,
     pub input_box_address: Address,
@@ -96,10 +96,7 @@ impl TryFrom<BlockchainCLIConfig> for BlockchainConfig {
         // try to get the values from the environment values
         let mut dapp_address =
             cli.dapp_address.map(deserialize::<Address>).transpose()?;
-        let mut dapp_deploy_block_hash = cli
-            .dapp_deploy_block_hash
-            .map(deserialize::<Hash>)
-            .transpose()?;
+        let mut dapp_deployment_block_number = cli.dapp_deployment_block_number;
         let mut history_address = cli
             .history_address
             .map(deserialize::<Address>)
@@ -118,7 +115,8 @@ impl TryFrom<BlockchainCLIConfig> for BlockchainConfig {
             cli.dapp_deployment_file.map(read::<Contract>).transpose()?
         {
             dapp_address = dapp_address.or(file.address);
-            dapp_deploy_block_hash = dapp_deploy_block_hash.or(file.block_hash);
+            dapp_deployment_block_number =
+                dapp_deployment_block_number.or(file.block_number);
         }
         if let Some(file) = cli
             .rollups_deployment_file
@@ -144,7 +142,9 @@ impl TryFrom<BlockchainCLIConfig> for BlockchainConfig {
 
         Ok(BlockchainConfig {
             dapp_address: check_missing!(dapp_address),
-            dapp_deploy_block_hash: check_missing!(dapp_deploy_block_hash),
+            dapp_deployment_block_number: check_missing!(
+                dapp_deployment_block_number
+            ),
             history_address: check_missing!(history_address),
             authority_address: check_missing!(authority_address),
             input_box_address: check_missing!(input_box_address),
@@ -157,8 +157,8 @@ struct Contract {
     #[serde(rename = "address")]
     address: Option<Address>,
 
-    #[serde(rename = "blockHash")]
-    block_hash: Option<Hash>,
+    #[serde(rename = "blockNumber")]
+    block_number: Option<u64>,
 }
 
 #[derive(Clone, Debug, Deserialize)]