diff --git a/core/src/execution/mod.rs b/core/src/execution/mod.rs
index e4bf7887..17cca3ed 100644
--- a/core/src/execution/mod.rs
+++ b/core/src/execution/mod.rs
@@ -7,7 +7,6 @@ use alloy::rpc::types::{Filter, Log};
 use eyre::Result;
 use futures::future::join_all;
 use revm::primitives::KECCAK_EMPTY;
-use std::env;
 use triehash_ethereum::ordered_trie_root;
 
 use crate::network_spec::NetworkSpec;
@@ -178,8 +177,8 @@ impl<N: NetworkSpec, R: ExecutionRpc<N>> ExecutionClient<N, R> {
     }
 
     pub async fn get_client_version(&self) -> Result<String> {
-        let helios_version = env::var("CARGO_PKG_VERSION");
-        Ok(format!("helios-{}", helios_version.unwrap()))
+        let helios_version = std::env!("CARGO_PKG_VERSION");
+        Ok(format!("helios-{}", helios_version))
     }
 
     pub async fn get_transaction_receipt(