diff --git a/apps/emqx/src/emqx.erl b/apps/emqx/src/emqx.erl
index 2d2e4eb52..449116738 100644
--- a/apps/emqx/src/emqx.erl
+++ b/apps/emqx/src/emqx.erl
@@ -239,10 +239,10 @@ reboot() ->
 
 -ifdef(EMQX_ENTERPRISE).
 default_started_applications() ->
-    [gproc, esockd, ranch, cowboy, ekka, emqx].
+    [gproc, esockd, ranch, cowboy, ekka, quicer, emqx].
 -else.
 default_started_applications() ->
-    [gproc, esockd, ranch, cowboy, ekka, emqx, emqx_modules].
+    [gproc, esockd, ranch, cowboy, ekka, quicer, emqx, emqx_modules].
 -endif.
 
 %%--------------------------------------------------------------------
diff --git a/apps/emqx/src/emqx_app.erl b/apps/emqx/src/emqx_app.erl
index 26b81c8e7..d786a42b9 100644
--- a/apps/emqx/src/emqx_app.erl
+++ b/apps/emqx/src/emqx_app.erl
@@ -49,6 +49,9 @@ start(_Type, _Args) ->
     ok = emqx_plugins:init(),
     _ = emqx_plugins:load(),
     _ = start_ce_modules(),
+    %% @fixme unsure why we need this.
+    quicer_nif:open_lib(),
+    quicer_nif:reg_open(),
     emqx_boot:is_enabled(listeners) andalso (ok = emqx_listeners:start()),
     register(emqx, self()),
     ok = emqx_alarm_handler:load(),
diff --git a/apps/emqx/src/emqx_listeners.erl b/apps/emqx/src/emqx_listeners.erl
index b3d6bf319..2d7a77e65 100644
--- a/apps/emqx/src/emqx_listeners.erl
+++ b/apps/emqx/src/emqx_listeners.erl
@@ -141,7 +141,7 @@ start_listener(Proto, ListenOn, Options) when Proto == https; Proto == wss ->
     start_http_listener(fun cowboy:start_tls/3, 'mqtt:wss', ListenOn,
                         ranch_opts(Options), ws_opts(Options));
 
-%% MQTT over QUIC
+%% Start MQTT/QUIC listener
 start_listener(quic, ListenOn, Options) ->
     SSLOpts = proplists:get_value(ssl_options, Options),
     ListenOpts = [ {cert, proplists:get_value(certfile, SSLOpts)}
@@ -253,6 +253,8 @@ stop_listener(Proto, ListenOn, _Opts) when Proto == http; Proto == ws ->
     cowboy:stop_listener(ws_name('mqtt:ws', ListenOn));
 stop_listener(Proto, ListenOn, _Opts) when Proto == https; Proto == wss ->
     cowboy:stop_listener(ws_name('mqtt:wss', ListenOn));
+stop_listener(quic, _ListenOn, _Opts) ->
+    quicer:stop_listener('mqtt:quic');
 stop_listener(Proto, ListenOn, _Opts) ->
     esockd:close(Proto, ListenOn).
 
diff --git a/rebar.config b/rebar.config
index 67efca3f6..b602005f6 100644
--- a/rebar.config
+++ b/rebar.config
@@ -54,7 +54,7 @@
     , {snabbkaffe, {git, "https://github.com/kafka4beam/snabbkaffe.git", {tag, "0.13.0"}}}
     , {hocon, {git, "https://github.com/emqx/hocon.git", {tag, "0.5.1"}}}
     , {emqx_http_lib, {git, "https://github.com/emqx/emqx_http_lib.git", {tag, "0.2.1"}}}
-    , {quicer, {git, "https://github.com/qzhuyan/quic.git", {branch, "demo/3"}}}
+    , {quicer, {git, "https://github.com/qzhuyan/quic.git", {branch, "dev/william/main-prepare-emqx"}}}
     ]}.
 
 {xref_ignores,