diff --git a/zenoh/tests/authentication.rs b/zenoh/tests/authentication.rs
index a49261c9d..3d6579d6a 100644
--- a/zenoh/tests/authentication.rs
+++ b/zenoh/tests/authentication.rs
@@ -41,10 +41,10 @@ mod test {
         create_new_files(TESTFILES_PATH.to_path_buf())
             .await
             .unwrap();
-        test_pub_sub_deny_then_allow_usrpswd(37447).await;
-        test_pub_sub_allow_then_deny_usrpswd(37447).await;
-        test_get_qbl_allow_then_deny_usrpswd(37447).await;
-        test_get_qbl_deny_then_allow_usrpswd(37447).await;
+        test_pub_sub_deny_then_allow_usrpswd(29447).await;
+        test_pub_sub_allow_then_deny_usrpswd(29447).await;
+        test_get_qbl_allow_then_deny_usrpswd(29447).await;
+        test_get_qbl_deny_then_allow_usrpswd(29447).await;
     }
 
     #[tokio::test(flavor = "multi_thread", worker_threads = 4)]
@@ -53,10 +53,10 @@ mod test {
         create_new_files(TESTFILES_PATH.to_path_buf())
             .await
             .unwrap();
-        test_pub_sub_deny_then_allow_tls(37448, false).await;
-        test_pub_sub_allow_then_deny_tls(37449).await;
-        test_get_qbl_allow_then_deny_tls(37450).await;
-        test_get_qbl_deny_then_allow_tls(37451).await;
+        test_pub_sub_deny_then_allow_tls(29448, false).await;
+        test_pub_sub_allow_then_deny_tls(29449).await;
+        test_get_qbl_allow_then_deny_tls(29450).await;
+        test_get_qbl_deny_then_allow_tls(29451).await;
     }
 
     #[tokio::test(flavor = "multi_thread", worker_threads = 4)]
@@ -65,10 +65,10 @@ mod test {
         create_new_files(TESTFILES_PATH.to_path_buf())
             .await
             .unwrap();
-        test_pub_sub_deny_then_allow_quic(37452).await;
-        test_pub_sub_allow_then_deny_quic(37453).await;
-        test_get_qbl_deny_then_allow_quic(37454).await;
-        test_get_qbl_allow_then_deny_quic(37455).await;
+        test_pub_sub_deny_then_allow_quic(29452).await;
+        test_pub_sub_allow_then_deny_quic(29453).await;
+        test_get_qbl_deny_then_allow_quic(29454).await;
+        test_get_qbl_allow_then_deny_quic(29455).await;
     }
 
     #[tokio::test(flavor = "multi_thread", worker_threads = 4)]
@@ -78,7 +78,7 @@ mod test {
         create_new_files(TESTFILES_PATH.to_path_buf())
             .await
             .unwrap();
-        test_pub_sub_deny_then_allow_tls(37456, true).await;
+        test_pub_sub_deny_then_allow_tls(29456, true).await;
     }
 
     #[tokio::test(flavor = "multi_thread", worker_threads = 4)]
@@ -87,8 +87,8 @@ mod test {
         create_new_files(TESTFILES_PATH.to_path_buf())
             .await
             .unwrap();
-        test_deny_allow_combination(37457).await;
-        test_allow_deny_combination(37458).await;
+        test_deny_allow_combination(29457).await;
+        test_allow_deny_combination(29458).await;
     }
 
     #[allow(clippy::all)]
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();