diff --git a/tests/src/tests/cli.rs b/tests/src/tests/cli.rs
index e5f2a126..98fc5218 100644
--- a/tests/src/tests/cli.rs
+++ b/tests/src/tests/cli.rs
@@ -4,7 +4,7 @@ use nomos_cli::{
 };
 use std::time::Duration;
 use tempfile::NamedTempFile;
-use tests::{nodes::nomos::Pool, MixNode, Node, NomosNode, SpawnConfig};
+use tests::{get_available_port, nodes::nomos::Pool, MixNode, Node, NomosNode, SpawnConfig};
 
 const TIMEOUT_SECS: u64 = 20;
 
@@ -16,7 +16,10 @@ async fn disseminate_blob() {
     // kill the node so that we can reuse its network config
     nodes[1].stop();
 
-    let network_config = nodes[1].config().network.clone();
+    let mut network_config = nodes[1].config().network.clone();
+    // use a new port because the old port is sometimes not closed immediately
+    network_config.backend.inner.port = get_available_port();
+
     let mut file = NamedTempFile::new().unwrap();
     let config_path = file.path().to_owned();
     serde_yaml::to_writer(&mut file, &network_config).unwrap();