diff --git a/NLP_datasets/stop_word_1word.txt b/NLP_datasets/stop_word_1word.txt
index b1c11e1..5a91f55 100644
--- a/NLP_datasets/stop_word_1word.txt
+++ b/NLP_datasets/stop_word_1word.txt
@@ -35,3 +35,6 @@
 حتی
 اگر
 آنچه
+توسط
+است
+مدت