diff --git a/apps/emqx_auth_http/src/emqx_auth_http.app.src b/apps/emqx_auth_http/src/emqx_auth_http.app.src
index d5b9edbc8..7f05e6c7e 100644
--- a/apps/emqx_auth_http/src/emqx_auth_http.app.src
+++ b/apps/emqx_auth_http/src/emqx_auth_http.app.src
@@ -1,6 +1,6 @@
 {application, emqx_auth_http,
  [{description, "EMQ X Authentication/ACL with HTTP API"},
-  {vsn, "4.3.9"}, % strict semver, bump manually!
+  {vsn, "4.3.10"}, % strict semver, bump manually!
   {modules, []},
   {registered, [emqx_auth_http_sup]},
   {applications, [kernel,stdlib,ehttpc]},
diff --git a/apps/emqx_auth_http/src/emqx_auth_http.appup.src b/apps/emqx_auth_http/src/emqx_auth_http.appup.src
index 7fe5279c1..6de6453d8 100644
--- a/apps/emqx_auth_http/src/emqx_auth_http.appup.src
+++ b/apps/emqx_auth_http/src/emqx_auth_http.appup.src
@@ -1,15 +1,19 @@
 %% -*- mode: erlang -*-
 %% Unless you know what you are doing, DO NOT edit manually!!
 {VSN,
-  [{"4.3.8",
-    [{load_module,emqx_auth_http,brutal_purge,soft_purge,[]},
+  [{"4.3.9",[{load_module,emqx_auth_http_app,brutal_purge,soft_purge,[]}]},
+   {"4.3.8",
+    [{load_module,emqx_auth_http_app,brutal_purge,soft_purge,[]},
+     {load_module,emqx_auth_http,brutal_purge,soft_purge,[]},
      {load_module,emqx_acl_http,brutal_purge,soft_purge,[]}]},
    {"4.3.7",
-    [{load_module,emqx_auth_http_cli,brutal_purge,soft_purge,[]},
+    [{load_module,emqx_auth_http_app,brutal_purge,soft_purge,[]},
+     {load_module,emqx_auth_http_cli,brutal_purge,soft_purge,[]},
      {load_module,emqx_auth_http,brutal_purge,soft_purge,[]},
      {load_module,emqx_acl_http,brutal_purge,soft_purge,[]}]},
    {"4.3.6",
-    [{load_module,emqx_auth_http_cli,brutal_purge,soft_purge,[]},
+    [{load_module,emqx_auth_http_app,brutal_purge,soft_purge,[]},
+     {load_module,emqx_auth_http_cli,brutal_purge,soft_purge,[]},
      {load_module,emqx_auth_http,brutal_purge,soft_purge,[]},
      {load_module,emqx_acl_http,brutal_purge,soft_purge,[]}]},
    {"4.3.5",
@@ -35,15 +39,19 @@
      {load_module,emqx_auth_http_cli,brutal_purge,soft_purge,[]}]},
    {<<"4.3.[0-1]">>,[{restart_application,emqx_auth_http}]},
    {<<".*">>,[]}],
-  [{"4.3.8",
-    [{load_module,emqx_auth_http,brutal_purge,soft_purge,[]},
+  [{"4.3.9",[{load_module,emqx_auth_http_app,brutal_purge,soft_purge,[]}]},
+   {"4.3.8",
+    [{load_module,emqx_auth_http_app,brutal_purge,soft_purge,[]},
+     {load_module,emqx_auth_http,brutal_purge,soft_purge,[]},
      {load_module,emqx_acl_http,brutal_purge,soft_purge,[]}]},
    {"4.3.7",
-    [{load_module,emqx_auth_http_cli,brutal_purge,soft_purge,[]},
+    [{load_module,emqx_auth_http_app,brutal_purge,soft_purge,[]},
+     {load_module,emqx_auth_http_cli,brutal_purge,soft_purge,[]},
      {load_module,emqx_auth_http,brutal_purge,soft_purge,[]},
      {load_module,emqx_acl_http,brutal_purge,soft_purge,[]}]},
    {"4.3.6",
-    [{load_module,emqx_auth_http_cli,brutal_purge,soft_purge,[]},
+    [{load_module,emqx_auth_http_app,brutal_purge,soft_purge,[]},
+     {load_module,emqx_auth_http_cli,brutal_purge,soft_purge,[]},
      {load_module,emqx_auth_http,brutal_purge,soft_purge,[]},
      {load_module,emqx_acl_http,brutal_purge,soft_purge,[]}]},
    {"4.3.5",
diff --git a/apps/emqx_auth_http/src/emqx_auth_http_app.erl b/apps/emqx_auth_http/src/emqx_auth_http_app.erl
index 9e4b842d8..5e3dc8e76 100644
--- a/apps/emqx_auth_http/src/emqx_auth_http_app.erl
+++ b/apps/emqx_auth_http/src/emqx_auth_http_app.erl
@@ -93,9 +93,8 @@ translate_env(EnvName) ->
                         {enable_pipelining, EnablePipelining},
                         {pool_size, PoolSize},
                         {pool_type, random},
-                        {connect_timeout, ConnectTimeout},
-                        {retry, 5},
-                        {retry_timeout, 1000}] ++ MoreOpts,
+                        {connect_timeout, ConnectTimeout}
+                       ] ++ MoreOpts,
             Method = proplists:get_value(method, Req),
             Headers = proplists:get_value(headers, Req),
             NHeaders = ensure_content_type_header(Method, emqx_http_lib:normalise_headers(Headers)),
diff --git a/apps/emqx_web_hook/src/emqx_web_hook.app.src b/apps/emqx_web_hook/src/emqx_web_hook.app.src
index 5726f5d89..34050490b 100644
--- a/apps/emqx_web_hook/src/emqx_web_hook.app.src
+++ b/apps/emqx_web_hook/src/emqx_web_hook.app.src
@@ -1,6 +1,6 @@
 {application, emqx_web_hook,
  [{description, "EMQ X WebHook Plugin"},
-  {vsn, "4.3.15"}, % strict semver, bump manually!
+  {vsn, "4.3.16"}, % strict semver, bump manually!
   {modules, []},
   {registered, [emqx_web_hook_sup]},
   {applications, [kernel,stdlib,ehttpc]},
diff --git a/apps/emqx_web_hook/src/emqx_web_hook.appup.src b/apps/emqx_web_hook/src/emqx_web_hook.appup.src
index c7108c8a3..b66a1eb96 100644
--- a/apps/emqx_web_hook/src/emqx_web_hook.appup.src
+++ b/apps/emqx_web_hook/src/emqx_web_hook.appup.src
@@ -1,7 +1,12 @@
 %% -*- mode: erlang -*-
 %% Unless you know what you are doing, DO NOT edit manually!!
 {VSN,
-  [{"4.3.14",[{load_module,emqx_web_hook_actions,brutal_purge,soft_purge,[]}]},
+  [{"4.3.15",
+    [{load_module,emqx_web_hook_app,brutal_purge,soft_purge,[]},
+     {load_module,emqx_web_hook_actions,brutal_purge,soft_purge,[]}]},
+   {"4.3.14",
+    [{load_module,emqx_web_hook_app,brutal_purge,soft_purge,[]},
+     {load_module,emqx_web_hook_actions,brutal_purge,soft_purge,[]}]},
    {<<"4\\.3\\.[0-7]">>,
     [{apply,{application,stop,[emqx_web_hook]}},
      {load_module,emqx_web_hook_app,brutal_purge,soft_purge,[]},
@@ -20,12 +25,19 @@
      {load_module,emqx_web_hook,brutal_purge,soft_purge,[]},
      {load_module,emqx_web_hook_app,brutal_purge,soft_purge,[]}]},
    {"4.3.11",
-    [{load_module,emqx_web_hook_actions,brutal_purge,soft_purge,[]},
+    [{load_module,emqx_web_hook_app,brutal_purge,soft_purge,[]},
+     {load_module,emqx_web_hook_actions,brutal_purge,soft_purge,[]},
      {load_module,emqx_web_hook,brutal_purge,soft_purge,[]}]},
    {<<"4\\.3\\.1[2-4]">>,
-    [{load_module,emqx_web_hook_actions,brutal_purge,soft_purge,[]}]},
+    [{load_module,emqx_web_hook_app,brutal_purge,soft_purge,[]},
+     {load_module,emqx_web_hook_actions,brutal_purge,soft_purge,[]}]},
    {<<".*">>,[]}],
-  [{"4.3.14",[{load_module,emqx_web_hook_actions,brutal_purge,soft_purge,[]}]},
+  [{"4.3.15",
+    [{load_module,emqx_web_hook_app,brutal_purge,soft_purge,[]},
+     {load_module,emqx_web_hook_actions,brutal_purge,soft_purge,[]}]},
+   {"4.3.14",
+    [{load_module,emqx_web_hook_app,brutal_purge,soft_purge,[]},
+     {load_module,emqx_web_hook_actions,brutal_purge,soft_purge,[]}]},
    {<<"4\\.3\\.[0-7]">>,
     [{apply,{application,stop,[emqx_web_hook]}},
      {load_module,emqx_web_hook_app,brutal_purge,soft_purge,[]},
@@ -44,8 +56,10 @@
      {load_module,emqx_web_hook,brutal_purge,soft_purge,[]},
      {load_module,emqx_web_hook_app,brutal_purge,soft_purge,[]}]},
    {"4.3.11",
-    [{load_module,emqx_web_hook_actions,brutal_purge,soft_purge,[]},
+    [{load_module,emqx_web_hook_app,brutal_purge,soft_purge,[]},
+     {load_module,emqx_web_hook_actions,brutal_purge,soft_purge,[]},
      {load_module,emqx_web_hook,brutal_purge,soft_purge,[]}]},
    {<<"4\\.3\\.1[2-4]">>,
-    [{load_module,emqx_web_hook_actions,brutal_purge,soft_purge,[]}]},
+    [{load_module,emqx_web_hook_app,brutal_purge,soft_purge,[]},
+     {load_module,emqx_web_hook_actions,brutal_purge,soft_purge,[]}]},
    {<<".*">>,[]}]}.
diff --git a/apps/emqx_web_hook/src/emqx_web_hook_actions.erl b/apps/emqx_web_hook/src/emqx_web_hook_actions.erl
index 726ab5539..92d301f8e 100644
--- a/apps/emqx_web_hook/src/emqx_web_hook_actions.erl
+++ b/apps/emqx_web_hook/src/emqx_web_hook_actions.erl
@@ -420,9 +420,7 @@ pool_opts(Params = #{<<"url">> := URL}, ResId) ->
      {enable_pipelining, EnablePipelining},
      {pool_size, PoolSize},
      {pool_type, hash},
-     {connect_timeout, ConnectTimeout},
-     {retry, 5},
-     {retry_timeout, 1000} | Opts].
+     {connect_timeout, ConnectTimeout} | Opts].
 
 pool_name(ResId) ->
     list_to_atom("webhook:" ++ str(ResId)).
diff --git a/apps/emqx_web_hook/src/emqx_web_hook_app.erl b/apps/emqx_web_hook/src/emqx_web_hook_app.erl
index df120145e..864b7eae4 100644
--- a/apps/emqx_web_hook/src/emqx_web_hook_app.erl
+++ b/apps/emqx_web_hook/src/emqx_web_hook_app.erl
@@ -82,9 +82,7 @@ translate_env() ->
                 {enable_pipelining, EnablePipelining},
                 {pool_size, PoolSize},
                 {pool_type, hash},
-                {connect_timeout, 5000},
-                {retry, 5},
-                {retry_timeout, 1000}] ++ MoreOpts,
+                {connect_timeout, 5000}] ++ MoreOpts,
     application:set_env(?APP, path, Path),
     application:set_env(?APP, pool_opts, PoolOpts),
     Headers = application:get_env(?APP, headers, []),
diff --git a/changes/v4.4.12-en.md b/changes/v4.4.12-en.md
new file mode 100644
index 000000000..1ec07f8be
--- /dev/null
+++ b/changes/v4.4.12-en.md
@@ -0,0 +1,3 @@
+### Enhancements
+
+- Upgrade http client library `ehttpc` from `0.2.1` to `0.4.2` [#9456](https://github.com/emqx/emqx/pull/9456).
diff --git a/changes/v4.4.12-zh.md b/changes/v4.4.12-zh.md
new file mode 100644
index 000000000..32b5cd14d
--- /dev/null
+++ b/changes/v4.4.12-zh.md
@@ -0,0 +1,3 @@
+### 增强
+
+- HTTP 客户端库 `ehttpc` 从 `0.2.1` 升级到 `0.4.2` [#9456](https://github.com/emqx/emqx/pull/9456)。
diff --git a/rebar.config b/rebar.config
index b26572355..1bcfb752c 100644
--- a/rebar.config
+++ b/rebar.config
@@ -40,7 +40,7 @@
 {deps,
     [ {gpb, "4.11.2"} %% 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
     , {redbug, "2.0.7"}
-    , {ehttpc, {git, "https://github.com/emqx/ehttpc", {tag, "0.2.0"}}}
+    , {ehttpc, {git, "https://github.com/emqx/ehttpc", {tag, "0.4.2"}}}
     , {gun, {git, "https://github.com/emqx/gun", {tag, "1.3.8"}}}
     , {eredis_cluster, {git, "https://github.com/emqx/eredis_cluster", {tag, "0.7.4"}}}
     , {gproc, {git, "https://github.com/uwiger/gproc", {tag, "0.9.0"}}}