diff --git a/apps/emqx_rule_engine/src/emqx_rule_engine_api.erl b/apps/emqx_rule_engine/src/emqx_rule_engine_api.erl
index d07ad9b94..beb1204df 100644
--- a/apps/emqx_rule_engine/src/emqx_rule_engine_api.erl
+++ b/apps/emqx_rule_engine/src/emqx_rule_engine_api.erl
@@ -337,7 +337,7 @@ update_resource(#{id := Id}, NewParams) ->
     P2 = case proplists:get_value(<<"config">>, NewParams) of
         undefined -> #{};
         [{}] -> #{};
-        Map -> #{<<"config">> => ?RAISE(maps:from_list(Map), {invalid_config, Map})}
+        Config -> #{<<"config">> => ?RAISE(json_term_to_map(Config), {invalid_config, Config})}
     end,
     case emqx_rule_engine:update_resource(Id, maps:merge(P1, P2)) of
         ok ->
@@ -552,4 +552,4 @@ get_rule_metrics(Id) ->
 
 get_action_metrics(Id) ->
     [maps:put(node, Node, rpc:call(Node, emqx_rule_metrics, get_action_metrics, [Id]))
-     || Node <- ekka_mnesia:running_nodes()].
\ No newline at end of file
+     || Node <- ekka_mnesia:running_nodes()].