diff --git a/src/hz.erl b/src/hz.erl
index f76b6ab..e09ad7b 100644
--- a/src/hz.erl
+++ b/src/hz.erl
@@ -1143,9 +1143,10 @@ assemble_calldata2(OwnerID, Nonce, Amount, TTL, Gas, GasPrice, Compiled, CallDat
 read_aci(Path) ->
     case file:read_file(Path) of
         {ok, Bin} ->
-            case zx_lib:b_to_ts(Bin) of
-                error -> {error, bad_aci};
-                OK    -> OK
+            try
+                {ok, binary_to_term(Bin, [safe])}
+            catch
+                error:badarg -> {error, bad_aci}
             end;
         Error ->
             Error
diff --git a/src/hz_fetcher.erl b/src/hz_fetcher.erl
index 864eac9..0651716 100644
--- a/src/hz_fetcher.erl
+++ b/src/hz_fetcher.erl
@@ -76,7 +76,7 @@ parse(Received, Sock, From, Timer) ->
         <<"HTTP/1.1 500 Internal Server Error\r\n", Tail/binary>> ->
             parse2(500, Tail, Sock, From, Timer);
         _ ->
-            ok = zx_net:disconnect(Sock),
+            ok = disconnect(Sock),
             ok = erlang:cancel_timer(Timer, [{async, true}]),
             gen_server:reply(From, {error, {received, Received}})
     end.
@@ -113,7 +113,7 @@ consume2(Length, Received, Sock, From, Timer) ->
     if
         Size == Length ->
             ok = erlang:cancel_timer(Timer, [{async, true}]),
-            ok = zx_net:disconnect(Sock),
+            ok = disconnect(Sock),
             Result = zj:decode(Received),
             gen_server:reply(From, Result);
         Size  < Length ->
@@ -236,6 +236,42 @@ url({Node, Port}, Path) when is_tuple(Node) ->
     ["https://", inet:ntoa(Node), ":", integer_to_list(Port), Path].
 
 
+disconnect(Socket) ->
+    case peername(Socket) of
+        {ok, {Addr, Port}} ->
+            Host = inet:ntoa(Addr),
+            disconnect(Socket, Host, Port);
+        {error, Reason} ->
+            log(warning, "Disconnect failed with: ~w", [Reason])
+    end.
+
+disconnect(Socket, Host, Port) ->
+    case gen_tcp:shutdown(Socket, read_write) of
+        ok ->
+            ok;
+        {error, enotconn} ->
+            receive
+                {tcp_closed, Socket} -> ok
+                after 0              -> ok
+            end;
+        {error, E} ->
+            ok = log(warning, "~ts:~w disconnect failed with: ~w", [Host, Port, E]),
+            receive
+                {tcp_closed, Socket} -> ok
+                after 0              -> ok
+            end
+    end.
+
+peername(Socket) ->
+    case inet:peername(Socket) of
+        {ok, {{0, 0, 0, 0, 0, 65535, X, Y}, Port}} ->
+            <<A:8, B:8, C:8, D:8>> = <<X:16, Y:16>>,
+            {ok, {{A, B, C, D}, Port}};
+        Other ->
+            Other
+    end.
+
+
 log(Level, Format, Args) ->
     Raw = io_lib:format("~w ~w: " ++ Format, [?MODULE, self() | Args]),
     Entry = unicode:characters_to_list(Raw),
diff --git a/src/hz_key_master.erl b/src/hz_key_master.erl
index dbd91e4..0d9638e 100644
--- a/src/hz_key_master.erl
+++ b/src/hz_key_master.erl
@@ -91,9 +91,8 @@ chunksize(N, C, A) -> chunksize(N div C, C, A + 1).
 
 
 read_words() ->
-    {ok, V} = zx_lib:string_to_version(proplists:get_value(vsn, module_info(attributes))),
-    HZ_Lib = zx_lib:ppath(lib, {"otpr", "hakuzaru", V}),
-    Path = filename:join([HZ_Lib, "priv", "words4096.txt"]),
+    ModPath = code:which(?MODULE),
+    Path = filename:join([filename:dirname(filename:dirname(ModPath)), "priv", "words4096.txt"]),
     {ok, Bin} = file:read_file(Path),
     string:lexemes(Bin, "\n").