diff --git a/zenoh/tests/interceptors.rs b/zenoh/tests/interceptors.rs
index 76c0ccff4..25dac7ddb 100644
--- a/zenoh/tests/interceptors.rs
+++ b/zenoh/tests/interceptors.rs
@@ -145,7 +145,7 @@ fn downsampling_test<F>(
 
 fn downsampling_by_keyexpr_impl(flow: InterceptorFlow) {
     let ke_prefix = "test/downsamples_by_keyexp";
-    let locator = "tcp/127.0.0.1:38446";
+    let locator = "tcp/127.0.0.1:31446";
 
     let ke_10hz: KeyExpr = format!("{ke_prefix}/10hz").try_into().unwrap();
     let ke_20hz: KeyExpr = format!("{ke_prefix}/20hz").try_into().unwrap();
@@ -198,7 +198,7 @@ fn downsampling_by_keyexpr() {
 #[cfg(unix)]
 fn downsampling_by_interface_impl(flow: InterceptorFlow) {
     let ke_prefix = "test/downsamples_by_interface";
-    let locator = "tcp/127.0.0.1:38447";
+    let locator = "tcp/127.0.0.1:31447";
 
     let ke_10hz: KeyExpr = format!("{ke_prefix}/10hz").try_into().unwrap();
     let ke_no_effect: KeyExpr = format!("{ke_prefix}/no_effect").try_into().unwrap();
diff --git a/zenoh/tests/unicity.rs b/zenoh/tests/unicity.rs
index d6a8c8f62..eefead014 100644
--- a/zenoh/tests/unicity.rs
+++ b/zenoh/tests/unicity.rs
@@ -82,7 +82,7 @@ async fn open_router_session() -> Session {
     config
         .listen
         .endpoints
-        .set(vec!["tcp/127.0.0.1:37447".parse().unwrap()])
+        .set(vec!["tcp/127.0.0.1:30447".parse().unwrap()])
         .unwrap();
     config.scouting.multicast.set_enabled(Some(false)).unwrap();
     println!("[  ][00a] Opening router session");
@@ -100,7 +100,7 @@ async fn open_client_sessions() -> (Session, Session, Session) {
     config.set_mode(Some(WhatAmI::Client)).unwrap();
     config
         .connect
-        .set_endpoints(ModeDependentValue::Unique(vec!["tcp/127.0.0.1:37447"
+        .set_endpoints(ModeDependentValue::Unique(vec!["tcp/127.0.0.1:30447"
             .parse::<EndPoint>()
             .unwrap()]))
         .unwrap();
@@ -111,7 +111,7 @@ async fn open_client_sessions() -> (Session, Session, Session) {
     config.set_mode(Some(WhatAmI::Client)).unwrap();
     config
         .connect
-        .set_endpoints(ModeDependentValue::Unique(vec!["tcp/127.0.0.1:37447"
+        .set_endpoints(ModeDependentValue::Unique(vec!["tcp/127.0.0.1:30447"
             .parse::<EndPoint>()
             .unwrap()]))
         .unwrap();
@@ -122,7 +122,7 @@ async fn open_client_sessions() -> (Session, Session, Session) {
     config.set_mode(Some(WhatAmI::Client)).unwrap();
     config
         .connect
-        .set_endpoints(ModeDependentValue::Unique(vec!["tcp/127.0.0.1:37447"
+        .set_endpoints(ModeDependentValue::Unique(vec!["tcp/127.0.0.1:30447"
             .parse::<EndPoint>()
             .unwrap()]))
         .unwrap();