diff --git a/apps/emqx_connector/test/emqx_connector_mongo_SUITE.erl b/apps/emqx_connector/test/emqx_connector_mongo_SUITE.erl
index 286fbfcf3..6e4ca1c8f 100644
--- a/apps/emqx_connector/test/emqx_connector_mongo_SUITE.erl
+++ b/apps/emqx_connector/test/emqx_connector_mongo_SUITE.erl
@@ -18,12 +18,12 @@
 -compile(nowarn_export_all).
 -compile(export_all).
 
+-include("emqx_connector.hrl").
 -include_lib("eunit/include/eunit.hrl").
 -include_lib("emqx/include/emqx.hrl").
 -include_lib("stdlib/include/assert.hrl").
 
 -define(MONGO_HOST, "mongo").
--define(MONGO_PORT, 27017).
 -define(MONGO_CLIENT, 'emqx_connector_mongo_SUITE_client').
 
 all() ->
@@ -33,7 +33,7 @@ groups() ->
     [].
 
 init_per_suite(Config) ->
-    case emqx_common_test_helpers:is_tcp_server_available(?MONGO_HOST, ?MONGO_PORT) of
+    case emqx_common_test_helpers:is_tcp_server_available(?MONGO_HOST, ?MONGO_DEFAULT_PORT) of
         true ->
             ok = emqx_connector_test_helpers:start_apps([ecpool, mongodb]),
             Config;
@@ -129,5 +129,5 @@ mongo_config() ->
         pool_size => 8,
         ssl => #{enable => false},
         srv_record => false,
-        servers => <<"127.0.0.1:27017">>
+        server => {<<?MONGO_HOST>>, ?MONGO_DEFAULT_PORT}
     }.
diff --git a/apps/emqx_connector/test/emqx_connector_mysql_SUITE.erl b/apps/emqx_connector/test/emqx_connector_mysql_SUITE.erl
index 7ffca4c39..c4bed5ade 100644
--- a/apps/emqx_connector/test/emqx_connector_mysql_SUITE.erl
+++ b/apps/emqx_connector/test/emqx_connector_mysql_SUITE.erl
@@ -18,12 +18,12 @@
 -compile(nowarn_export_all).
 -compile(export_all).
 
+-include("emqx_connector.hrl").
 -include_lib("eunit/include/eunit.hrl").
 -include_lib("emqx/include/emqx.hrl").
 -include_lib("stdlib/include/assert.hrl").
 
 -define(MYSQL_HOST, "mysql").
--define(MYSQL_PORT, 3306).
 
 all() ->
     emqx_common_test_helpers:all(?MODULE).
@@ -32,7 +32,7 @@ groups() ->
     [].
 
 init_per_suite(Config) ->
-    case emqx_common_test_helpers:is_tcp_server_available(?MYSQL_HOST, ?MYSQL_PORT) of
+    case emqx_common_test_helpers:is_tcp_server_available(?MYSQL_HOST, ?MYSQL_DEFAULT_PORT) of
         true ->
             Config;
         false ->
@@ -124,7 +124,7 @@ mysql_config() ->
         username => <<"root">>,
         password => <<"public">>,
         pool_size => 8,
-        server => {?MYSQL_HOST, ?MYSQL_PORT},
+        server => {?MYSQL_HOST, ?MYSQL_DEFAULT_PORT},
         ssl => #{enable => false}
     }.
 
diff --git a/apps/emqx_connector/test/emqx_connector_pgsql_SUITE.erl b/apps/emqx_connector/test/emqx_connector_pgsql_SUITE.erl
index 8f04bd71a..1e5d6ad85 100644
--- a/apps/emqx_connector/test/emqx_connector_pgsql_SUITE.erl
+++ b/apps/emqx_connector/test/emqx_connector_pgsql_SUITE.erl
@@ -18,12 +18,12 @@
 -compile(nowarn_export_all).
 -compile(export_all).
 
+-include("emqx_connector.hrl").
 -include_lib("eunit/include/eunit.hrl").
 -include_lib("emqx/include/emqx.hrl").
 -include_lib("stdlib/include/assert.hrl").
 
 -define(PGSQL_HOST, "pgsql").
--define(PGSQL_PORT, 5432).
 
 all() ->
     emqx_common_test_helpers:all(?MODULE).
@@ -32,7 +32,7 @@ groups() ->
     [].
 
 init_per_suite(Config) ->
-    case emqx_common_test_helpers:is_tcp_server_available(?PGSQL_HOST, ?PGSQL_PORT) of
+    case emqx_common_test_helpers:is_tcp_server_available(?PGSQL_HOST, ?PGSQL_DEFAULT_PORT) of
         true ->
             Config;
         false ->
@@ -124,7 +124,7 @@ pgsql_config() ->
         username => <<"root">>,
         password => <<"public">>,
         pool_size => 8,
-        server => {?PGSQL_HOST, ?PGSQL_PORT},
+        server => {?PGSQL_HOST, ?PGSQL_DEFAULT_PORT},
         ssl => #{enable => false}
     }.
 
@@ -135,7 +135,7 @@ pgsql_bad_config() ->
         username => <<"bad_root">>,
         password => <<"bad_public">>,
         pool_size => 8,
-        server => {?PGSQL_HOST, ?PGSQL_PORT},
+        server => {?PGSQL_HOST, ?PGSQL_DEFAULT_PORT},
         ssl => #{enable => false}
     }.