diff --git a/apps/emqx_authz/src/emqx_authz_api_schema.erl b/apps/emqx_authz/src/emqx_authz_api_schema.erl
index 689b167e1..158e26eab 100644
--- a/apps/emqx_authz/src/emqx_authz_api_schema.erl
+++ b/apps/emqx_authz/src/emqx_authz_api_schema.erl
@@ -95,7 +95,7 @@ definitions() ->
             },
             method => #{
                 type => string,
-                enum => [<<"get">>, <<"post">>, <<"put">>],
+                enum => [<<"get">>, <<"post">>],
                 example => <<"get">>
             },
             headers => #{type => object},
diff --git a/apps/emqx_authz/src/emqx_authz_schema.erl b/apps/emqx_authz/src/emqx_authz_schema.erl
index 15d251fc6..e17a55d0a 100644
--- a/apps/emqx_authz/src/emqx_authz_schema.erl
+++ b/apps/emqx_authz/src/emqx_authz_schema.erl
@@ -84,7 +84,7 @@ fields(http_post) ->
     , {enable, #{type => boolean(),
                  default => true}}
     , {url, #{type => url()}}
-    , {method,  #{type => hoconsc:enum([post, put]),
+    , {method,  #{type => post,
                   default => get}}
     , {headers, #{type => map(),
                   default => #{ <<"accept">> => <<"application/json">>