diff --git a/testing-framework/configs/src/topology/configs/api.rs b/testing-framework/configs/src/topology/configs/api.rs
index 7226ca4..aaa97be 100644
--- a/testing-framework/configs/src/topology/configs/api.rs
+++ b/testing-framework/configs/src/topology/configs/api.rs
@@ -3,6 +3,8 @@ use std::net::SocketAddr;
 use nomos_utils::net::get_available_tcp_port;
 use thiserror::Error;
 
+const LOCALHOST: [u8; 4] = [127, 0, 0, 1];
+
 #[derive(Clone)]
 pub struct GeneralApiConfig {
     pub address: SocketAddr,
@@ -23,8 +25,8 @@ pub fn create_api_configs(ids: &[[u8; 32]]) -> Result<Vec<GeneralApiConfig>, Api
             let testing_port =
                 get_available_tcp_port().ok_or(ApiConfigError::PortAllocationFailed)?;
             Ok(GeneralApiConfig {
-                address: format!("127.0.0.1:{address_port}").parse().unwrap(),
-                testing_http_address: format!("127.0.0.1:{testing_port}").parse().unwrap(),
+                address: SocketAddr::from((LOCALHOST, address_port)),
+                testing_http_address: SocketAddr::from((LOCALHOST, testing_port)),
             })
         })
         .collect()