diff --git a/ai_chatgpt_usages/plagiarism_checker_python/requirements_plagiarism_checker_python.txt b/ai_chatgpt_usages/plagiarism_checker_python/requirements_plagiarism_checker_python.txt
index 6959f9f2..824e47d4 100644
--- a/ai_chatgpt_usages/plagiarism_checker_python/requirements_plagiarism_checker_python.txt
+++ b/ai_chatgpt_usages/plagiarism_checker_python/requirements_plagiarism_checker_python.txt
@@ -25,7 +25,7 @@ markdown-it-py==2.1.0
 MarkupSafe==2.1.2
 matplotlib==3.7.0
 mdurl==0.1.2
-nltk==3.6.3
+nltk==3.6.6
 numpy==1.24.2
 odfpy==1.4.1
 packaging==23.0