diff --git a/apps/emqx/rebar.config b/apps/emqx/rebar.config
index 0ea42c0fb..cad599436 100644
--- a/apps/emqx/rebar.config
+++ b/apps/emqx/rebar.config
@@ -29,7 +29,7 @@
     {esockd, {git, "https://github.com/emqx/esockd", {tag, "5.9.4"}}},
     {ekka, {git, "https://github.com/emqx/ekka", {tag, "0.13.9"}}},
     {gen_rpc, {git, "https://github.com/emqx/gen_rpc", {tag, "2.8.1"}}},
-    {hocon, {git, "https://github.com/emqx/hocon.git", {tag, "0.35.0"}}},
+    {hocon, {git, "https://github.com/emqx/hocon.git", {tag, "0.35.3"}}},
     {pbkdf2, {git, "https://github.com/emqx/erlang-pbkdf2.git", {tag, "2.0.4"}}},
     {recon, {git, "https://github.com/ferd/recon", {tag, "2.5.1"}}},
     {snabbkaffe, {git, "https://github.com/kafka4beam/snabbkaffe.git", {tag, "1.0.0"}}}
diff --git a/apps/emqx_authn/test/emqx_authn_pgsql_SUITE.erl b/apps/emqx_authn/test/emqx_authn_pgsql_SUITE.erl
index ff0bfaea7..fa0658f6a 100644
--- a/apps/emqx_authn/test/emqx_authn_pgsql_SUITE.erl
+++ b/apps/emqx_authn/test/emqx_authn_pgsql_SUITE.erl
@@ -112,8 +112,7 @@ t_update_with_invalid_config(_Config) ->
                         #{
                             kind := validation_error,
                             path := "authentication.server",
-                            reason := required_field,
-                            value := undefined
+                            reason := required_field
                         }
                     ]}
             }}},
diff --git a/apps/emqx_authz/test/emqx_authz_redis_SUITE.erl b/apps/emqx_authz/test/emqx_authz_redis_SUITE.erl
index c07d920ad..b480e0262 100644
--- a/apps/emqx_authz/test/emqx_authz_redis_SUITE.erl
+++ b/apps/emqx_authz/test/emqx_authz_redis_SUITE.erl
@@ -188,7 +188,7 @@ t_create_invalid_config(_Config) ->
     ?assertMatch(
         {error, #{
             kind := validation_error,
-            path := "authorization.sources.1"
+            path := "authorization.sources.1.server"
         }},
         emqx_authz:update(?CMD_REPLACE, [C])
     ).
diff --git a/apps/emqx_connector/i18n/emqx_connector_http.conf b/apps/emqx_connector/i18n/emqx_connector_http.conf
index 7583a38ed..da886191b 100644
--- a/apps/emqx_connector/i18n/emqx_connector_http.conf
+++ b/apps/emqx_connector/i18n/emqx_connector_http.conf
@@ -4,12 +4,12 @@ emqx_connector_http {
           en: """
 The base URL is the URL includes only the scheme, host and port.<br/>
 When send an HTTP request, the real URL to be used is the concatenation of the base URL and the
-path parameter (passed by the emqx_resource:query/2,3 or provided by the request parameter).<br/>
+path parameter<br/>
 For example: `http://localhost:9901/`
 """
           zh: """
 base URL 只包含host和port。<br/>
-发送HTTP请求时，真实的URL是由base URL 和 path parameter连接而成（通过emqx_resource:query/2,3传递，或者通过请求参数提供）。<br/>
+发送HTTP请求时，真实的URL是由base URL 和 path parameter连接而成。<br/>
 示例：`http://localhost:9901/`
 """
         }
@@ -76,14 +76,8 @@ base URL 只包含host和port。<br/>
 
     request {
         desc {
-          en: """
-If the request is provided, the caller can send HTTP requests via
-<code>emqx_resource:query(ResourceId, {send_message, BridgeId, Message})</code>
-"""
-          zh: """
-如果提供了请求，调用者可以通过以下方式发送 HTTP 请求
-<code>emqx_resource:query(ResourceId, {send_message, BridgeId, Message})</code>
-"""
+          en: """Configure HTTP request parameters."""
+          zh: """设置 HTTP 请求的参数。"""
         }
         label: {
               en: "Request"
diff --git a/apps/emqx_connector/src/emqx_connector_http.erl b/apps/emqx_connector/src/emqx_connector_http.erl
index 7f84c665a..bd129f1a8 100644
--- a/apps/emqx_connector/src/emqx_connector_http.erl
+++ b/apps/emqx_connector/src/emqx_connector_http.erl
@@ -234,6 +234,7 @@ on_start(
     PoolName = emqx_plugin_libs_pool:pool_name(InstId),
     State = #{
         pool_name => PoolName,
+        pool_type => PoolType,
         host => Host,
         port => Port,
         connect_timeout => ConnectTimeout,
@@ -264,9 +265,10 @@ on_query(InstId, {send_message, Msg}, State) ->
                 path := Path,
                 body := Body,
                 headers := Headers,
-                request_timeout := Timeout,
-                max_retries := Retry
+                request_timeout := Timeout
             } = process_request(Request, Msg),
+            %% bridge buffer worker has retry, do not let ehttpc retry
+            Retry = 0,
             on_query(
                 InstId,
                 {undefined, Method, {Path, Headers, Body}, Timeout, Retry},
@@ -274,13 +276,15 @@ on_query(InstId, {send_message, Msg}, State) ->
             )
     end;
 on_query(InstId, {Method, Request}, State) ->
-    on_query(InstId, {undefined, Method, Request, 5000, 2}, State);
+    %% TODO: Get retry from State
+    on_query(InstId, {undefined, Method, Request, 5000, _Retry = 2}, State);
 on_query(InstId, {Method, Request, Timeout}, State) ->
-    on_query(InstId, {undefined, Method, Request, Timeout, 2}, State);
+    %% TODO: Get retry from State
+    on_query(InstId, {undefined, Method, Request, Timeout, _Retry = 2}, State);
 on_query(
     InstId,
     {KeyOrNum, Method, Request, Timeout, Retry},
-    #{pool_name := PoolName, base_path := BasePath} = State
+    #{base_path := BasePath} = State
 ) ->
     ?TRACE(
         "QUERY",
@@ -288,12 +292,10 @@ on_query(
         #{request => Request, connector => InstId, state => State}
     ),
     NRequest = formalize_request(Method, BasePath, Request),
+    Worker = resolve_pool_worker(State, KeyOrNum),
     case
         ehttpc:request(
-            case KeyOrNum of
-                undefined -> PoolName;
-                _ -> {PoolName, KeyOrNum}
-            end,
+            Worker,
             Method,
             NRequest,
             Timeout,
@@ -361,19 +363,15 @@ on_query_async(
     InstId,
     {KeyOrNum, Method, Request, Timeout},
     ReplyFunAndArgs,
-    #{pool_name := PoolName, base_path := BasePath} = State
+    #{base_path := BasePath} = State
 ) ->
+    Worker = resolve_pool_worker(State, KeyOrNum),
     ?TRACE(
         "QUERY_ASYNC",
         "http_connector_received",
         #{request => Request, connector => InstId, state => State}
     ),
     NRequest = formalize_request(Method, BasePath, Request),
-    Worker =
-        case KeyOrNum of
-            undefined -> ehttpc_pool:pick_worker(PoolName);
-            _ -> ehttpc_pool:pick_worker(PoolName, KeyOrNum)
-        end,
     ok = ehttpc:request_async(
         Worker,
         Method,
@@ -383,6 +381,16 @@ on_query_async(
     ),
     {ok, Worker}.
 
+resolve_pool_worker(State, undefined) ->
+    resolve_pool_worker(State, self());
+resolve_pool_worker(#{pool_name := PoolName} = State, Key) ->
+    case maps:get(pool_type, State, random) of
+        random ->
+            ehttpc_pool:pick_worker(PoolName);
+        hash ->
+            ehttpc_pool:pick_worker(PoolName, Key)
+    end.
+
 on_get_status(_InstId, #{pool_name := PoolName, connect_timeout := Timeout} = State) ->
     case do_get_status(PoolName, Timeout) of
         ok ->
diff --git a/mix.exs b/mix.exs
index caa4b15b0..8e271390f 100644
--- a/mix.exs
+++ b/mix.exs
@@ -47,7 +47,7 @@ defmodule EMQXUmbrella.MixProject do
       {:lc, github: "emqx/lc", tag: "0.3.2", override: true},
       {:redbug, "2.0.8"},
       {:typerefl, github: "ieQu1/typerefl", tag: "0.9.1", override: true},
-      {:ehttpc, github: "emqx/ehttpc", tag: "0.4.5", override: true},
+      {:ehttpc, github: "emqx/ehttpc", tag: "0.4.6", override: true},
       {:gproc, github: "uwiger/gproc", tag: "0.8.0", override: true},
       {:jiffy, github: "emqx/jiffy", tag: "1.0.5", override: true},
       {:cowboy, github: "emqx/cowboy", tag: "2.9.0", override: true},
@@ -68,7 +68,7 @@ defmodule EMQXUmbrella.MixProject do
       # in conflict by emqtt and hocon
       {:getopt, "1.0.2", override: true},
       {:snabbkaffe, github: "kafka4beam/snabbkaffe", tag: "1.0.0", override: true},
-      {:hocon, github: "emqx/hocon", tag: "0.35.0", override: true},
+      {:hocon, github: "emqx/hocon", tag: "0.35.3", override: true},
       {:emqx_http_lib, github: "emqx/emqx_http_lib", tag: "0.5.2", override: true},
       {:esasl, github: "emqx/esasl", tag: "0.2.0"},
       {:jose, github: "potatosalad/erlang-jose", tag: "1.11.2"},
diff --git a/rebar.config b/rebar.config
index 71a54a03d..4a35641c4 100644
--- a/rebar.config
+++ b/rebar.config
@@ -49,7 +49,7 @@
     , {gpb, "4.19.5"} %% gpb only used to build, but not for release, pin it here to avoid fetching a wrong version due to rebar plugins scattered in all the deps
     , {typerefl, {git, "https://github.com/ieQu1/typerefl", {tag, "0.9.1"}}}
     , {gun, {git, "https://github.com/emqx/gun", {tag, "1.3.9"}}}
-    , {ehttpc, {git, "https://github.com/emqx/ehttpc", {tag, "0.4.5"}}}
+    , {ehttpc, {git, "https://github.com/emqx/ehttpc", {tag, "0.4.6"}}}
     , {gproc, {git, "https://github.com/uwiger/gproc", {tag, "0.8.0"}}}
     , {jiffy, {git, "https://github.com/emqx/jiffy", {tag, "1.0.5"}}}
     , {cowboy, {git, "https://github.com/emqx/cowboy", {tag, "2.9.0"}}}
@@ -68,7 +68,7 @@
     , {system_monitor, {git, "https://github.com/ieQu1/system_monitor", {tag, "3.0.3"}}}
     , {getopt, "1.0.2"}
     , {snabbkaffe, {git, "https://github.com/kafka4beam/snabbkaffe.git", {tag, "1.0.0"}}}
-    , {hocon, {git, "https://github.com/emqx/hocon.git", {tag, "0.35.0"}}}
+    , {hocon, {git, "https://github.com/emqx/hocon.git", {tag, "0.35.3"}}}
     , {emqx_http_lib, {git, "https://github.com/emqx/emqx_http_lib.git", {tag, "0.5.2"}}}
     , {esasl, {git, "https://github.com/emqx/esasl", {tag, "0.2.0"}}}
     , {jose, {git, "https://github.com/potatosalad/erlang-jose", {tag, "1.11.2"}}}