diff --git a/apps/emqx/src/emqx_alarm.erl b/apps/emqx/src/emqx_alarm.erl
index 6c4e348c4..83a12472d 100644
--- a/apps/emqx/src/emqx_alarm.erl
+++ b/apps/emqx/src/emqx_alarm.erl
@@ -26,7 +26,6 @@
 -export([mnesia/1]).
 
 -boot_mnesia({mnesia, [boot]}).
--copy_mnesia({mnesia, [copy]}).
 
 -export([post_config_update/4]).
 
diff --git a/apps/emqx/src/emqx_banned.erl b/apps/emqx/src/emqx_banned.erl
index 30f91da6e..89442a6aa 100644
--- a/apps/emqx/src/emqx_banned.erl
+++ b/apps/emqx/src/emqx_banned.erl
@@ -27,7 +27,6 @@
 -export([mnesia/1]).
 
 -boot_mnesia({mnesia, [boot]}).
--copy_mnesia({mnesia, [copy]}).
 
 -export([start_link/0, stop/0]).
 
diff --git a/apps/emqx/src/emqx_router.erl b/apps/emqx/src/emqx_router.erl
index 0416d6d72..915b01dd6 100644
--- a/apps/emqx/src/emqx_router.erl
+++ b/apps/emqx/src/emqx_router.erl
@@ -28,7 +28,6 @@
 -export([mnesia/1]).
 
 -boot_mnesia({mnesia, [boot]}).
--copy_mnesia({mnesia, [copy]}).
 
 -export([start_link/2]).
 
diff --git a/apps/emqx/src/emqx_router_helper.erl b/apps/emqx/src/emqx_router_helper.erl
index 3fc3f42ce..edec76d06 100644
--- a/apps/emqx/src/emqx_router_helper.erl
+++ b/apps/emqx/src/emqx_router_helper.erl
@@ -27,7 +27,6 @@
 -export([mnesia/1]).
 
 -boot_mnesia({mnesia, [boot]}).
--copy_mnesia({mnesia, [copy]}).
 
 %% API
 -export([ start_link/0
diff --git a/apps/emqx/src/emqx_shared_sub.erl b/apps/emqx/src/emqx_shared_sub.erl
index 9a3c7c74d..79a7d5522 100644
--- a/apps/emqx/src/emqx_shared_sub.erl
+++ b/apps/emqx/src/emqx_shared_sub.erl
@@ -28,7 +28,6 @@
 -export([mnesia/1]).
 
 -boot_mnesia({mnesia, [boot]}).
--copy_mnesia({mnesia, [copy]}).
 
 %% APIs
 -export([start_link/0]).
diff --git a/apps/emqx/src/emqx_trie.erl b/apps/emqx/src/emqx_trie.erl
index bf2afc910..4354a2bab 100644
--- a/apps/emqx/src/emqx_trie.erl
+++ b/apps/emqx/src/emqx_trie.erl
@@ -22,7 +22,6 @@
 -export([mnesia/1]).
 
 -boot_mnesia({mnesia, [boot]}).
--copy_mnesia({mnesia, [copy]}).
 
 %% Trie APIs
 -export([ insert/1
diff --git a/apps/emqx_authn/src/enhanced_authn/emqx_enhanced_authn_scram_mnesia.erl b/apps/emqx_authn/src/enhanced_authn/emqx_enhanced_authn_scram_mnesia.erl
index d791d1aed..92bdf0619 100644
--- a/apps/emqx_authn/src/enhanced_authn/emqx_enhanced_authn_scram_mnesia.erl
+++ b/apps/emqx_authn/src/enhanced_authn/emqx_enhanced_authn_scram_mnesia.erl
@@ -46,7 +46,6 @@
 -export([mnesia/1]).
 
 -boot_mnesia({mnesia, [boot]}).
--copy_mnesia({mnesia, [copy]}).
 
 -record(user_info,
         { user_id
diff --git a/apps/emqx_authn/src/simple_authn/emqx_authn_mnesia.erl b/apps/emqx_authn/src/simple_authn/emqx_authn_mnesia.erl
index 590152aaf..095dc6ef8 100644
--- a/apps/emqx_authn/src/simple_authn/emqx_authn_mnesia.erl
+++ b/apps/emqx_authn/src/simple_authn/emqx_authn_mnesia.erl
@@ -59,7 +59,6 @@
 -export([mnesia/1]).
 
 -boot_mnesia({mnesia, [boot]}).
--copy_mnesia({mnesia, [copy]}).
 
 -define(TAB, ?MODULE).
 
diff --git a/apps/emqx_authz/src/emqx_authz_mnesia.erl b/apps/emqx_authz/src/emqx_authz_mnesia.erl
index 9c5ca458b..3851affed 100644
--- a/apps/emqx_authz/src/emqx_authz_mnesia.erl
+++ b/apps/emqx_authz/src/emqx_authz_mnesia.erl
@@ -32,7 +32,6 @@
 -endif.
 
 -boot_mnesia({mnesia, [boot]}).
--copy_mnesia({mnesia, [copy]}).
 
 -spec(mnesia(boot | copy) -> ok).
 mnesia(boot) ->
diff --git a/apps/emqx_dashboard/src/emqx_dashboard_admin.erl b/apps/emqx_dashboard/src/emqx_dashboard_admin.erl
index f79eb92e5..2a7f2410a 100644
--- a/apps/emqx_dashboard/src/emqx_dashboard_admin.erl
+++ b/apps/emqx_dashboard/src/emqx_dashboard_admin.erl
@@ -21,7 +21,6 @@
 -include("emqx_dashboard.hrl").
 
 -boot_mnesia({mnesia, [boot]}).
--copy_mnesia({mnesia, [copy]}).
 
 %% Mnesia bootstrap
 -export([mnesia/1]).
diff --git a/apps/emqx_dashboard/src/emqx_dashboard_collection.erl b/apps/emqx_dashboard/src/emqx_dashboard_collection.erl
index 9f856c36d..2108d0919 100644
--- a/apps/emqx_dashboard/src/emqx_dashboard_collection.erl
+++ b/apps/emqx_dashboard/src/emqx_dashboard_collection.erl
@@ -25,7 +25,6 @@
 -export([get_local_time/0]).
 
 -boot_mnesia({mnesia, [boot]}).
--copy_mnesia({mnesia, [copy]}).
 
 %% Mnesia bootstrap
 -export([mnesia/1]).
diff --git a/apps/emqx_dashboard/src/emqx_dashboard_token.erl b/apps/emqx_dashboard/src/emqx_dashboard_token.erl
index 5b38a163f..b1eb32d74 100644
--- a/apps/emqx_dashboard/src/emqx_dashboard_token.erl
+++ b/apps/emqx_dashboard/src/emqx_dashboard_token.erl
@@ -28,7 +28,6 @@
         ]).
 
 -boot_mnesia({mnesia, [boot]}).
--copy_mnesia({mnesia, [copy]}).
 
 -export([mnesia/1]).
 
diff --git a/apps/emqx_gateway/src/mqttsn/emqx_sn_registry.erl b/apps/emqx_gateway/src/mqttsn/emqx_sn_registry.erl
index 3769aa7a7..99e297a7f 100644
--- a/apps/emqx_gateway/src/mqttsn/emqx_sn_registry.erl
+++ b/apps/emqx_gateway/src/mqttsn/emqx_sn_registry.erl
@@ -56,7 +56,6 @@
 %-export([mnesia/1]).
 
 %-boot_mnesia({mnesia, [boot]}).
-%-copy_mnesia({mnesia, [copy]}).
 
 %%% @doc Create or replicate tables.
 %-spec(mnesia(boot | copy) -> ok).
diff --git a/apps/emqx_machine/src/emqx_cluster_rpc.erl b/apps/emqx_machine/src/emqx_cluster_rpc.erl
index ebebd19a4..e64623bdc 100644
--- a/apps/emqx_machine/src/emqx_cluster_rpc.erl
+++ b/apps/emqx_machine/src/emqx_cluster_rpc.erl
@@ -30,7 +30,6 @@
 -endif.
 
 -boot_mnesia({mnesia, [boot]}).
--copy_mnesia({mnesia, [copy]}).
 
 -include_lib("emqx/include/logger.hrl").
 -include("emqx_machine.hrl").
diff --git a/apps/emqx_modules/src/emqx_delayed.erl b/apps/emqx_modules/src/emqx_delayed.erl
index 15cafb614..401e2a10c 100644
--- a/apps/emqx_modules/src/emqx_delayed.erl
+++ b/apps/emqx_modules/src/emqx_delayed.erl
@@ -25,7 +25,6 @@
 -export([mnesia/1]).
 
 -boot_mnesia({mnesia, [boot]}).
--copy_mnesia({mnesia, [copy]}).
 
 -export([ start_link/0
         , on_message_publish/1
diff --git a/apps/emqx_modules/src/emqx_telemetry.erl b/apps/emqx_modules/src/emqx_telemetry.erl
index 9a4881d9b..f9903b845 100644
--- a/apps/emqx_modules/src/emqx_telemetry.erl
+++ b/apps/emqx_modules/src/emqx_telemetry.erl
@@ -30,7 +30,6 @@
 -export([mnesia/1]).
 
 -boot_mnesia({mnesia, [boot]}).
--copy_mnesia({mnesia, [copy]}).
 
 -export([ start_link/0
         , stop/0
diff --git a/apps/emqx_psk/src/emqx_psk.erl b/apps/emqx_psk/src/emqx_psk.erl
index 871276c24..7de332cb9 100644
--- a/apps/emqx_psk/src/emqx_psk.erl
+++ b/apps/emqx_psk/src/emqx_psk.erl
@@ -47,7 +47,6 @@
 -export([mnesia/1]).
 
 -boot_mnesia({mnesia, [boot]}).
--copy_mnesia({mnesia, [copy]}).
 
 -define(TAB, ?MODULE).
 -define(PSK_SHARD, emqx_psk_shard).