diff --git a/.travis.yml b/.travis.yml
index 86467dd..3184bb1 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -9,3 +9,5 @@ otp_release:
     - 17.5
     - 18.3
     - 19.2
+    - 23.3
+    - 24.3
diff --git a/src/radius_codec.erl b/src/radius_codec.erl
index 94ba149..f137606 100644
--- a/src/radius_codec.erl
+++ b/src/radius_codec.erl
@@ -4,7 +4,7 @@
 -export([encode_response/3, encode_attributes/1]).
 -export([encode_request/2]).
 
--compile(export_all).
+%%-compile(export_all).
 
 -include("radius.hrl").
 
@@ -30,7 +30,7 @@ decode_packet(Bin, Secret) ->
                         A1 = lists:keyreplace("Message-Authenticator", 1, A, {"Message-Authenticator", <<0:128>>}),
                         {ok, A2} = encode_attributes(A1),
                         Packet1 = [Code, Ident, <<Length:16>>, Auth, A2],
-                        case crypto:hmac(md5, Secret, Packet1) =:= Value of
+                        case hmac(Secret, Packet1) =:= Value of
                             true ->
                                 {ok, Packet};
                             false ->
@@ -118,7 +118,7 @@ encode_response(Request, Response, Secret) ->
 
                 Length = <<(20 + byte_size(A2)):16>>,
                 Packet = list_to_binary([Code, Ident, Length, ReqAuth, A2]),
-                MA = crypto:hmac(md5, Secret, Packet),
+                MA = hmac(Secret, Packet),
 
                 A3 = A ++ [{"Message-Authenticator", MA}],
                 {ok, A4} = encode_attributes(A3),
@@ -292,3 +292,16 @@ lookup_value(Code, Name, Attrs) ->
                 false -> undefined
             end
     end.
+
+-ifdef(OTP_RELEASE).
+-if(?OTP_RELEASE >= 23).
+hmac(Key, Str) ->
+    crypto:mac(hmac, md5, Key, Str).
+-else.
+hmac(Key, Str) ->
+    crypto:hmac(md5, Key, Str).
+-endif.
+-else.
+hmac(Key, Str) ->
+    crypto:hmac(md5, Key, Str).
+-endif.
\ No newline at end of file