diff --git a/tokenizer_config.json b/tokenizer_config.json
index 9f2cec8..97d4216 100644
--- a/tokenizer_config.json
+++ b/tokenizer_config.json
@@ -1 +1 @@
-{"unk_token": "<unk>", "bos_token": "<s>", "eos_token": "</s>", "pad_token": "<pad>", "do_lower_case": false}
\ No newline at end of file
+{"unk_token": "<unk>", "bos_token": "<s>", "eos_token": "</s>", "pad_token": "<pad>", "do_lower_case": false, "return_attention_mask": true, "do_normalize": true}
\ No newline at end of file