diff --git a/auto_tests/conference_test.c b/auto_tests/conference_test.c
index b99b9af7..46b58224 100644
--- a/auto_tests/conference_test.c
+++ b/auto_tests/conference_test.c
@@ -106,7 +106,9 @@ group_test_restart:
 
     {
         TOX_ERR_GET_PORT error;
-        ck_assert_msg(tox_self_get_udp_port(toxes[0], &error) == 33445, "First Tox instance did not bind to udp port 33445.\n");
+        const uint16_t port = tox_self_get_udp_port(toxes[0], &error);
+        ck_assert_msg(33445 <= port && port <= 33545,
+                      "First Tox instance did not bind to udp port inside [33445, 33545].\n");
         ck_assert_msg(error == TOX_ERR_GET_PORT_OK, "wrong error");
     }
 
diff --git a/auto_tests/tox_many_tcp_test.c b/auto_tests/tox_many_tcp_test.c
index 510109ee..8234513c 100644
--- a/auto_tests/tox_many_tcp_test.c
+++ b/auto_tests/tox_many_tcp_test.c
@@ -74,7 +74,9 @@ START_TEST(test_many_clients_tcp)
 
     {
         TOX_ERR_GET_PORT error;
-        ck_assert_msg(tox_self_get_udp_port(toxes[0], &error) == 33445, "First Tox instance did not bind to udp port 33445.\n");
+        uint16_t port = tox_self_get_udp_port(toxes[0], &error);
+        ck_assert_msg(33445 <= port && port <= 33545,
+                      "First Tox instance did not bind to udp port inside [33445, 33545].\n");
         ck_assert_msg(error == TOX_ERR_GET_PORT_OK, "wrong error");
         ck_assert_msg(tox_self_get_tcp_port(toxes[0], &error) == TCP_RELAY_PORT,
                       "First Tox instance did not bind to tcp port %u.\n", TCP_RELAY_PORT);
@@ -176,7 +178,9 @@ START_TEST(test_many_clients_tcp_b)
 
     {
         TOX_ERR_GET_PORT error;
-        ck_assert_msg(tox_self_get_udp_port(toxes[0], &error) == 33445, "First Tox instance did not bind to udp port 33445.\n");
+        uint16_t port = tox_self_get_udp_port(toxes[0], &error);
+        ck_assert_msg(33445 <= port && port <= 33545,
+                      "First Tox instance did not bind to udp port inside [33445, 33545].\n");
         ck_assert_msg(error == TOX_ERR_GET_PORT_OK, "wrong error");
         ck_assert_msg(tox_self_get_tcp_port(toxes[0], &error) == TCP_RELAY_PORT,
                       "First Tox instance did not bind to tcp port %u.\n", TCP_RELAY_PORT);
diff --git a/auto_tests/tox_many_test.c b/auto_tests/tox_many_test.c
index a34cfa8d..7ab0facc 100644
--- a/auto_tests/tox_many_test.c
+++ b/auto_tests/tox_many_test.c
@@ -50,7 +50,9 @@ START_TEST(test_many_clients)
 
     {
         TOX_ERR_GET_PORT error;
-        ck_assert_msg(tox_self_get_udp_port(toxes[0], &error) == 33445, "First Tox instance did not bind to udp port 33445.\n");
+        uint16_t port = tox_self_get_udp_port(toxes[0], &error);
+        ck_assert_msg(33445 <= port && port <= 33545,
+                      "First Tox instance did not bind to udp port inside [33445, 33545].\n");
         ck_assert_msg(error == TOX_ERR_GET_PORT_OK, "wrong error");
     }
 
diff --git a/auto_tests/tox_one_test.c b/auto_tests/tox_one_test.c
index 1b277d96..7a429ac8 100644
--- a/auto_tests/tox_one_test.c
+++ b/auto_tests/tox_one_test.c
@@ -127,7 +127,9 @@ START_TEST(test_one)
 
     {
         TOX_ERR_GET_PORT error;
-        ck_assert_msg(tox_self_get_udp_port(tox1, &error) == 33445, "First Tox instance did not bind to udp port 33445.\n");
+        uint16_t port = tox_self_get_udp_port(tox1, &error);
+        ck_assert_msg(33445 <= port && port <= 33545,
+                      "First Tox instance did not bind to udp port inside [33445, 33545].\n");
         ck_assert_msg(error == TOX_ERR_GET_PORT_OK, "wrong error");
     }
 
diff --git a/auto_tests/tox_test.c b/auto_tests/tox_test.c
index 06164194..32df1b57 100644
--- a/auto_tests/tox_test.c
+++ b/auto_tests/tox_test.c
@@ -331,19 +331,17 @@ START_TEST(test_few_clients)
 
     {
         TOX_ERR_GET_PORT error;
-        ck_assert_msg(tox_self_get_udp_port(tox1, &error) == 33445, "First Tox instance did not bind to udp port 33445.\n");
+        uint16_t first_port = tox_self_get_udp_port(tox1, &error);
+        ck_assert_msg(33445 <= first_port && first_port <= 33545 - 2,
+                      "First Tox instance did not bind to udp port inside [33445, 33543].\n");
         ck_assert_msg(error == TOX_ERR_GET_PORT_OK, "wrong error");
-    }
 
-    {
-        TOX_ERR_GET_PORT error;
-        ck_assert_msg(tox_self_get_udp_port(tox2, &error) == 33446, "Second Tox instance did not bind to udp port 33446.\n");
+        ck_assert_msg(tox_self_get_udp_port(tox2, &error) == first_port + 1,
+                      "Second Tox instance did not bind to udp port %d.\n", first_port + 1);
         ck_assert_msg(error == TOX_ERR_GET_PORT_OK, "wrong error");
-    }
 
-    {
-        TOX_ERR_GET_PORT error;
-        ck_assert_msg(tox_self_get_udp_port(tox3, &error) == 33447, "Third Tox instance did not bind to udp port 33447.\n");
+        ck_assert_msg(tox_self_get_udp_port(tox3, &error) == first_port + 2,
+                      "Third Tox instance did not bind to udp port %d.\n", first_port + 2);
         ck_assert_msg(error == TOX_ERR_GET_PORT_OK, "wrong error");
     }