diff --git a/apps/emqx/rebar.config b/apps/emqx/rebar.config
index 347f6c351..b92c06524 100644
--- a/apps/emqx/rebar.config
+++ b/apps/emqx/rebar.config
@@ -33,7 +33,7 @@
            [ {meck, "0.9.2"}
            , {proper, "1.4.0"}
            , {bbmustache,"1.10.0"}
-           , {emqtt, {git, "https://github.com/emqx/emqtt", {tag, "1.4.3"}}}
+           , {emqtt, {git, "https://github.com/emqx/emqtt", {tag, "1.4.8"}}}
            ]},
          {extra_src_dirs, [{"test",[recursive]}]}
        ]}
diff --git a/apps/emqx_connector/rebar.config b/apps/emqx_connector/rebar.config
index c638f434d..d394fac7f 100644
--- a/apps/emqx_connector/rebar.config
+++ b/apps/emqx_connector/rebar.config
@@ -21,7 +21,7 @@
   %% eredis_cluster's dependency getting resolved earlier.
   %% Here we pin 1.5.2 to avoid surprises in the future.
   {poolboy, {git, "https://github.com/emqx/poolboy.git", {tag, "1.5.2"}}},
-  {emqtt, {git, "https://github.com/emqx/emqtt", {tag, "1.4.3"}}}
+  {emqtt, {git, "https://github.com/emqx/emqtt", {tag, "1.4.8"}}}
 ]}.
 
 {shell, [
diff --git a/apps/emqx_retainer/rebar.config b/apps/emqx_retainer/rebar.config
index 0e363fb63..3725849ef 100644
--- a/apps/emqx_retainer/rebar.config
+++ b/apps/emqx_retainer/rebar.config
@@ -22,6 +22,6 @@
  [{test,
    [{deps,
      [
-      {emqtt, {git, "https://github.com/emqx/emqtt", {tag, "1.4.3"}}}]}
+      {emqtt, {git, "https://github.com/emqx/emqtt", {tag, "1.4.8"}}}]}
    ]}
  ]}.
diff --git a/mix.exs b/mix.exs
index d3e61d8bc..2e60b453e 100644
--- a/mix.exs
+++ b/mix.exs
@@ -61,7 +61,7 @@ defmodule EMQXUmbrella.MixProject do
       {:ecpool, github: "emqx/ecpool", tag: "0.5.2"},
       {:replayq, "0.3.3", override: true},
       {:pbkdf2, github: "emqx/erlang-pbkdf2", tag: "2.0.4", override: true},
-      {:emqtt, github: "emqx/emqtt", tag: "1.4.3", override: true},
+      {:emqtt, github: "emqx/emqtt", tag: "1.4.8", override: true},
       {:rulesql, github: "emqx/rulesql", tag: "0.1.4"},
       {:observer_cli, "1.7.1"},
       {:system_monitor, github: "ieQu1/system_monitor", tag: "3.0.2"},
diff --git a/rebar.config b/rebar.config
index e535c6feb..9f9190cdd 100644
--- a/rebar.config
+++ b/rebar.config
@@ -60,7 +60,7 @@
     , {ecpool, {git, "https://github.com/emqx/ecpool", {tag, "0.5.2"}}}
     , {replayq, "0.3.3"}
     , {pbkdf2, {git, "https://github.com/emqx/erlang-pbkdf2.git", {tag, "2.0.4"}}}
-    , {emqtt, {git, "https://github.com/emqx/emqtt", {tag, "1.4.3"}}}
+    , {emqtt, {git, "https://github.com/emqx/emqtt", {tag, "1.4.8"}}}
     , {rulesql, {git, "https://github.com/emqx/rulesql", {tag, "0.1.4"}}}
     , {observer_cli, "1.7.1"} % NOTE: depends on recon 2.5.x
     , {system_monitor, {git, "https://github.com/ieQu1/system_monitor", {tag, "3.0.2"}}}