diff --git a/Makefile b/Makefile
index b7aab34..dad806e 100644
--- a/Makefile
+++ b/Makefile
@@ -4,15 +4,16 @@ CT_OPTS = -cover test/cover.spec
 ERLC_OPTS = +debug_info 
 
 
-DEPS = cowboy ranch wamper lager
-dep_cowboy = git https://github.com/ninenines/cowboy.git 1.1.x
-dep_wamper = git https://github.com/bwegh/wamper master
-dep_lager = git https://github.com/basho/lager 3.0.2
+DEPS = cowboy wamper lager
+%%dep_cowboy = git https://github.com/ninenines/cowboy master
+dep_cowboy_commit = master
+dep_wamper = git https://github.com/ethrbh/wamper master
+dep_lager = git https://github.com/erlang-lager/lager 3.9.2
 
 
 
 TEST_DEPS = awre
-dep_awre = git https://github.com/bwegh/awre master
+dep_awre = git https://github.com/ethrbh/awre master
 
 
 include erlang.mk
diff --git a/examples/simple_router/Makefile b/examples/simple_router/Makefile
index 3a3ed3a..805064b 100644
--- a/examples/simple_router/Makefile
+++ b/examples/simple_router/Makefile
@@ -1,8 +1,9 @@
 PROJECT = simple_router
 ERLC_OPTS = +debug_info
 
-DEPS = erwa
-dep_erwa = git https://github.com/bwegh/erwa master
+DEPS = erwa elogger
+dep_erwa = git https://github.com/ethrbh/erwa master
+dep_elogger = git https://github.com/bwegh/elogger master
 
 
 include ../../erlang.mk
diff --git a/examples/simple_router/simple_router.d b/examples/simple_router/simple_router.d
index e69de29..004e985 100644
--- a/examples/simple_router/simple_router.d
+++ b/examples/simple_router/simple_router.d
@@ -0,0 +1,2 @@
+
+COMPILE_FIRST +=
diff --git a/examples/simple_router/src/simple_router.erl b/examples/simple_router/src/simple_router.erl
index a9c1e16..8c8e381 100644
--- a/examples/simple_router/src/simple_router.erl
+++ b/examples/simple_router/src/simple_router.erl
@@ -29,6 +29,16 @@ init([]) ->
                                            {"/static/[...]", cowboy_static, {priv_dir, simple_router, "static"}}
                                            ]}
                                     ]),
-  {ok, _} = cowboy:start_http(http, 100, [{port, 8080}],[{env, [{dispatch, Dispatch}]}]),
+  
+  {ok, CowboyVsn} = application:get_key(cowboy,vsn),
+  case string:str(CowboyVsn, "1.") of
+	  1 ->
+		  %% This is for cowboy-1.x
+		  {ok, _} = cowboy:start_http(http, 100, [{port, 8080}],[{env, [{dispatch, Dispatch}]}]);
+	  _->
+		  %% This is for cowboy-2.x or newer
+		  {ok, _} = cowboy:start_clear(http, 100, [{port, 8080}],#{env => #{dispatch => Dispatch}})
+  end,
+  
   {ok,_} = ranch:start_listener(erwa_tcp, 5, ranch_tcp, [{port,5555}], erwa_in_tcp, []),
   {ok, {{one_for_one, 10, 10}, []}}.
diff --git a/src/erwa.app.src b/src/erwa.app.src
index f2165dd..2332473 100644
--- a/src/erwa.app.src
+++ b/src/erwa.app.src
@@ -35,7 +35,9 @@
         wamper,
 		mnesia,
         lager,
-        crypto
+        crypto,
+        cowboy,
+        ranch
 	]},
 	{mod, {erwa_app, []}},
 	{env, []}
diff --git a/src/erwa_broker.erl b/src/erwa_broker.erl
index d170a66..5a63b97 100644
--- a/src/erwa_broker.erl
+++ b/src/erwa_broker.erl
@@ -271,8 +271,9 @@ realm_to_db_name(Realm) ->
 	binary_to_atom(<< Prefix/binary, Realm/binary >>, utf8 ).
 
 gen_id() ->
-	crypto:rand_uniform(0,9007199254740993).
-
+	%%crypto:rand_uniform(0,9007199254740993).
+	rand:uniform(9007199254740993).
+	
 publish_metaevent(Event, TopicUri, SessionId, SecondArg, Realm) ->
     case binary:part(TopicUri,{0,5}) == <<"wamp.">> of
         true ->
diff --git a/src/erwa_dealer.erl b/src/erwa_dealer.erl
index 1cc9b72..d80bf3a 100644
--- a/src/erwa_dealer.erl
+++ b/src/erwa_dealer.erl
@@ -323,7 +323,8 @@ get_callee([H|_],single,_) ->
     H;
 get_callee(Callees,random,_) ->
     Len = length(Callees),
-    lists:nth(crypto:rand_uniform(1,Len+1),Callees);
+    %%lists:nth(crypto:rand_uniform(1,Len+1),Callees);
+    lists:nth(rand:uniform(Len+1),Callees);
 get_callee(Callees,roundrobin,NextIn) ->
     Next = case NextIn > length(Callees) of 
                true ->
@@ -381,7 +382,8 @@ realm_to_table_name(Realm) ->
 
 
 gen_id() ->
-  crypto:rand_uniform(0,9007199254740993).
+  %%crypto:rand_uniform(0,9007199254740993).
+  rand:uniform(9007199254740993).
 
 publish_metaevent(Event,Args) ->
     #{uri := ProcedureUri, id := ProcId, session := SessionId, realm := Realm} = Args,
diff --git a/src/erwa_in_ws.erl b/src/erwa_in_ws.erl
index 071f391..c13cc2f 100644
--- a/src/erwa_in_ws.erl
+++ b/src/erwa_in_ws.erl
@@ -34,13 +34,16 @@
 % cowboy 1.x
 -export([init/3]).
 -export([websocket_init/3]).
+-export([websocket_handle/3]).
+-export([websocket_info/3]).
 
 %cowboy 2.x
 -export([init/2]).
+-export([websocket_init/1]).
+-export([websocket_handle/2]).
+-export([websocket_info/2]).
 
 % both cowboy versions
--export([websocket_handle/3]).
--export([websocket_info/3]).
 -export([terminate/3]).
 
 -define(TIMEOUT,60000).
@@ -60,7 +63,9 @@
                routing = undefined
               }).
 
-% for cowboy 1.x
+%% ********************************************************
+%% for cowboy 1.x
+%% ********************************************************
 init(_, Req, _ ) ->
   {upgrade, protocol, cowboy_websocket, Req, []}.
 
@@ -80,25 +85,6 @@ websocket_init( _Type, Req, _Opts) ->
       {shutdown,Req1}
   end.
 
-init( Req, _Opts) ->
-  % need to check for the wamp.2.json or wamp.2.msgpack
-  Protocols = cowboy_req:parse_header(?SUBPROTHEADER, Req),
-  lager:debug("protocols are ~p~n",[Protocols]),
-  case find_supported_protocol(Protocols) of
-    {Enc,WsEncoding,Header} ->
-      Req1  = cowboy_req:set_resp_header(?SUBPROTHEADER,Header,Req),
-      %% Peer = cowboy_req:peer(Req1),
-      Routing = erwa_routing:init(),
-      %% Routing1 = erwa_routing:set_peer(Peer,Routing),
-      %% Routing2 = erwa_routing:set_source(websocket,Routing1),
-      {cowboy_websocket,Req1,#state{enc=Enc,ws_enc=WsEncoding,routing=Routing}};
-    _ ->
-      % unsupported
-      {shutdown,Req}
-  end.
-
-
-
 websocket_handle({WsEnc, Data}, Req, #state{ws_enc=WsEnc,enc=Enc,buffer=Buffer,routing=Routing}=State) ->
   {MList,NewBuffer} = wamper_protocol:deserialize(<<Buffer/binary, Data/binary>>,Enc),
   {ok,OutFrames,NewRouting} = handle_messages(MList,[],Routing,State),
@@ -128,10 +114,62 @@ websocket_info({erwa,Msg}, Req, #state{routing=Routing,ws_enc=WsEnc,enc=Enc}=Sta
 websocket_info(_Data, Req, State) ->
   {ok,Req,State}.
 
+%% ********************************************************
+%% for cowboy 2.x
+%% ********************************************************
+init(Req, _State) ->
+	% need to check for the wamp.2.json or wamp.2.msgpack
+	Protocols = cowboy_req:parse_header(?SUBPROTHEADER, Req),
+	lager:debug("protocols are ~p~n",[Protocols]),
+	case find_supported_protocol(Protocols) of
+		{Enc, WsEncoding, Header} ->
+			Req1  = cowboy_req:set_resp_header(?SUBPROTHEADER,Header,Req),
+			{cowboy_websocket, Req1, #state{enc = Enc,
+											ws_enc = WsEncoding
+										   }};
+		_ ->
+			% unsupported
+			{shutdown,Req}
+	end.
+
+websocket_init(State) ->
+	Routing = erwa_routing:init(),
+	{ok, State#state{routing = Routing}}.
+
+websocket_handle({WsEnc, Data}, #state{ws_enc=WsEnc,enc=Enc,buffer=Buffer,routing=Routing}=State) ->
+	{MList,NewBuffer} = wamper_protocol:deserialize(<<Buffer/binary, Data/binary>>,Enc),
+	{ok,OutFrames,NewRouting} = handle_messages(MList,[],Routing,State),
+	{reply, OutFrames, State#state{buffer=NewBuffer,routing=NewRouting}};
+websocket_handle(Data, State) ->
+	erlang:error(unsupported,[Data, State]),
+	{ok, State}.
+
+websocket_info(erwa_stop, State) ->
+	{stop, State};
+websocket_info({erwa,Msg}, #state{routing=Routing,ws_enc=WsEnc,enc=Enc}=State) when is_tuple(Msg)->
+	Encode = fun(M) ->
+					 {WsEnc,wamper_protocol:serialize(M,Enc)}
+			 end,
+	case erwa_routing:handle_info(Msg, Routing) of
+		{ok, NewRouting} ->
+			{ok, State#state{routing=NewRouting}};
+		{send, OutMsg, NewRouting} ->
+			{reply, Encode(OutMsg), State#state{routing=NewRouting}};
+		{send_stop, OutMsg, NewRouting} ->
+			self() ! erwa_stop,
+			{reply, Encode(OutMsg), State#state{routing=NewRouting}};
+		{stop, NewRouting} ->
+			{stop, State#state{routing=NewRouting}}
+	end;
+websocket_info(_Data, State) ->
+	{ok, State}.
+
+%% ********************************************************
+%% for all cowboy versions
+%% ********************************************************
 terminate(_Reason, _Req, _State) ->
   ok.
 
-
 handle_messages([],ToSend,Routing,_State) ->
   {ok,lists:reverse(ToSend),Routing};
 handle_messages([Msg|Tail],ToSend,Routing,#state{ws_enc=WsEnc,enc=Enc}=State) ->
diff --git a/src/erwa_invocation.erl b/src/erwa_invocation.erl
index 256e57c..7fadbd9 100644
--- a/src/erwa_invocation.erl
+++ b/src/erwa_invocation.erl
@@ -344,8 +344,8 @@ realm_to_tablename(Realm) ->
 	binary_to_atom(<< Prefix/binary, Realm/binary >>, utf8 ).
 
 gen_id() ->
-	crypto:rand_uniform(0,9007199254740993).
-
+	%%crypto:rand_uniform(0,9007199254740993).
+	rand:uniform(9007199254740993).
 
 %%
 %% **********  UNIT TESTING   *************************
diff --git a/src/erwa_publications.erl b/src/erwa_publications.erl
index 5556ba1..f522416 100644
--- a/src/erwa_publications.erl
+++ b/src/erwa_publications.erl
@@ -58,7 +58,8 @@ get_pub_id() ->
 
 
 new_pub_id() ->
-  ID = crypto:rand_uniform(0,9007199254740993),
+  %%ID = crypto:rand_uniform(0,9007199254740993),
+  ID = rand:uniform(9007199254740993),
   Data = #erwa_pub_rec{id=ID},
   Trans = fun() -> 
                   case mnesia:read({erwa_pub_rec, ID}) of 
diff --git a/src/erwa_sess_man.erl b/src/erwa_sess_man.erl
index 373aac7..6bf9eca 100644
--- a/src/erwa_sess_man.erl
+++ b/src/erwa_sess_man.erl
@@ -112,7 +112,8 @@ create_session() ->
     Res.
 
 ensure_unique_id() ->
-    ID = crypto:rand_uniform(0,9007199254740993),
+    %%ID = crypto:rand_uniform(0,9007199254740993),
+	ID = rand:uniform(9007199254740993),
     case mnesia:read({erwa_session_record,ID}) of
         [] -> ID;
         _ -> ensure_unique_id()
diff --git a/src/erwa_user_db.erl b/src/erwa_user_db.erl
index 3d996be..9715650 100644
--- a/src/erwa_user_db.erl
+++ b/src/erwa_user_db.erl
@@ -78,7 +78,7 @@ start_link() ->
 
 
 -spec allow_anonymous(Realm :: binary(), Transport::atom()) -> true | false.
-allow_anonymous(Realm,Transport) -> 
+allow_anonymous(_Realm,_Transport) -> 
   %% case can_join(anonymous, Realm, Transport) of 
   %%   {true,_} -> true;
   %%   _ -> false