diff --git a/ejabberd_auth_http/src/scram2.erl b/ejabberd_auth_http/src/scram2.erl
index 1c4ebd9..f344469 100644
--- a/ejabberd_auth_http/src/scram2.erl
+++ b/ejabberd_auth_http/src/scram2.erl
@@ -132,7 +132,7 @@ password_to_scram(Password) ->
 password_to_scram(#scram{} = Password, _) ->
     Password;
 password_to_scram(Password, IterationCount) ->
-    Salt = crypto:rand_bytes(?SALT_LENGTH),
+    Salt = p1_rand:bytes(?SALT_LENGTH),
     SaltedPassword = salted_password(Password, Salt, IterationCount),
     StoredKey = stored_key(scram2:client_key(SaltedPassword)),
     ServerKey = server_key(SaltedPassword),